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Home » Diseases » Emergencies / First Aid for Dogs & Cats – General Information » Emergencies / First Aid A-Z » Gastrointestinal inflammation (Gastroenteritis)
Gastrointestinal inflammation (Gastroenteritis)
Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026
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GastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. inflammation (Gastroenteritis) dog/cat
Gastroenteritis is an inflammation of the stomach and intestines, usually with Vomiting, DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., and AbdominalThe term “abdominal” refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain. Triggers are infections, feeding errors, Parasit, StressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being., or toxins. It becomes critical due to Dehydratation, electrolyte disorders, and Circulatory weakness.
Gastroenteritis refers to an inflammation of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract, which can affect both the stomach (gastritis) and the small intestineThe intestine is the medical term for the gut, including the small intestine (intestinum tenue) and the large intestine (intestinum crassum). It plays a central role in the digestion and absorption of nutrients. (enteritisEnteritis is an inflammation of the small intestine that can be caused by various factors, including infections (viral or bacterial), autoimmune diseases, or exposure to radiation. Symptoms include Diarrhea, Abdominal pain, and Seizures.). In dogs and cats, it is a common disease that can occur in various degrees of severity – from mild and self-limitingSelf-limiting conditions are conditions that resolve on their own without medical intervention. In dogs and cats, mild viral infections or gastrointestinal disturbances can often be self-limiting. to life-threatening conditions. The disease is characterized by an inflammatory reaction of the gastric and intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients., which leads to a disturbed absorptionAbsorption refers to the uptake of substances by living cells or tissues. In the context of veterinary medicine, it often refers to the absorption of nutrients, drugs, or toxins from the digestive tract into the bloodstream. of nutrients and fluids as well as to an increased secretion. Gastroenteritis can be acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. or chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time., with the acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. form being diagnosed much more frequently. Young animals with a not yet fully developed immune systemThe immune system is the body’s defense system against infectious agents such as bacteria, viruses, fungi, and parasites. It comprises a complex network of organs, cells, and molecules that work together to protect the body. as well as older or immunosuppressed animals are particularly at risk.
Causes
The causes of gastroenteritis in dogs and cats are varied and can be divided into different categories:
InfectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. causes are one of the most common triggers. In dogs, viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. pathogens include parvovirus, coronavirus, and distemper virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., while in cats, feline panleukopenia virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants., felineFeline refers to anything related to cats. The term is used to describe diseases, behaviors, or anatomical aspects that are specific to cats. coronavirus, and felineFeline refers to anything related to cats. The term is used to describe diseases, behaviors, or anatomical aspects that are specific to cats. leukemia virusA virus is a microscopic infectious particle that cannot reproduce on its own and must infect a host cell to produce new virus particles. Viruses can cause a variety of diseases in humans, animals, and plants. are relevant. These viruses lead to direct damage to the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. and can cause serious courses, especially in young animals. Bacterial infections caused by salmonella, campylobacter, clostridia, or pathogenic E. coli strains can also triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats. gastroenteritis by producing toxins or directly damaging the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosa. ParasiticParasitic refers to diseases or conditions caused by parasites. Parasitic infections can affect the digestive tract, skin, and other organ systems. diseases caused by protozoa such as giardia and coccidia or by worms such as roundworms, hookworms, or whipworms are a common triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats. for gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. inflammations, especially in young or weakened animals.
Non-infectious causes include food intolerances and allergies, which can lead to an immunologically mediated inflammatory reaction. Sudden changes in diet or the ingestionIngestion refers to the intake of substances through the mouth and their delivery to the digestive tract. In dogs and cats, the ingestion of toxic substances, foreign objects, or incompatible foods can lead to health problems. of spoiled food, waste, or foreign material can also cause acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. gastroenteritis. Toxins and poisons, such as certain plants, household chemicals, or medications (mainly non-steroidalNon-steroidal refers to medications or substances that are not steroids and often have anti-inflammatory, analgesic, or antipyretic effects. They are used in dogs and cats to treat Pain and Inflammatory conditions. anti-inflammatory drugsAnti-inflammatory drugs are medications that reduce inflammation. They can be divided into nonsteroidal anti-inflammatory drugs (NSAIDs) and corticosteroids and are used in dogs and cats to reduce Inflammatory conditions and Pain.) can directly damage the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients.. StressStress refers to the state of an organism reacting to external stimuli or demands. In veterinary medicine, stress can have physical or psychological effects on animals, impacting their health and well-being., for example due to environmental changes, can also lead to increased permeability of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients. and subsequent inflammation via neuroendocrine mechanisms.
Systemic diseases such as kidney failureRenal failure is a condition in which the kidneys can no longer adequately perform their function of filtering and excreting waste products from the blood. It can be acute or chronic and requires immediate medical treatment., liver diseases, pancreatitis, or endocrine disorders can lead to secondary gastroenteritis. In chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. inflammations, Inflammatory conditions bowel disease (IBD) should also be considered, which are based on a misguided immune responseAn immune response is the immune system's reaction to foreign substances (antigens), such as microorganisms or proteins. It involves a series of processes aimed at recognizing, fighting, and eliminating these antigens..
Symptoms
GastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. Inflammation (Gastroenteritis) in Dogs and Cats
Typical Symptoms:
- Loss of appetite (inappetence)
- Vomiting, Nausea (salivation, Gagging)
- Mild AbdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain,
- DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., bowel sounds, (salivation, Gagging)
- Lethargy, increased drinking or thirstlessness
- occasionally Fever
Alarm signs:
- Blood in vomit/stool, black stool (melena)
- Repeated Vomiting + water does not stay in
- ApathyApathy refers to a state of indifference and reduced interest or lack of emotional involvement in activities or events that would normally arouse interest., collapse, severe dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse.
- Puppies/kittens: rapid deterioration, hypothermia possible
- Abdomen very painful/bloated → DD “acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. abdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen.”
Escalation/course:
- Deterioration within 6–12 h (especially young animals) → highly critical
- Persistence > 24–48 h or increasing weakness → escalation
- Initially mild, then increasing ApathyApathy refers to a state of indifference and reduced interest or lack of emotional involvement in activities or events that would normally arouse interest./Pallor → dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse./risk of shock
The clinical signs of gastroenteritis can vary depending on the cause, severity, and affected section of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. The characteristic Symptoms: include:
GastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. Symptoms: are in the foreground. Vomiting occurs frequently and can range from foamy saliva to bilious or bloody vomit. DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. varies in its consistency from mushy to watery and may contain admixtures of mucus or blood. Especially in hemorrhagicHemorrhagic refers to anything related to Bleeding. In medicine, it describes conditions or events that are caused by or characterized by Bleeding, such as hemorrhagic Fever. gastroenteritis, the stool can have a characteristic raspberry jelly-like consistency. Bowel sounds are often increased and can be perceived as bowel sounds. Loss of appetite (anorexia) is a common accompanying symptom that can be caused by Nausea and AbdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain.
Systemic Symptoms: develop especially in severe cases. A Dehydratation manifests itself through dry mucous membranes, reduced skin elasticity, and sunken eyes. Fever does not always occur but may be present, especially in infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. causes. Lethargy and general weakness result from fluid and electrolyte losses as well as possible toxemia. Weight loss can be observed in longer-lasting courses.
Especially in young animals, the Symptoms: can quickly lead to life-threatening conditions, as they are more susceptible to Dehydratation and electrolyte imbalances. In older animals, pre-existing underlying diseases can complicate the course of gastroenteritis. The Symptoms: can occur within a few hours to days depending on the cause and subside after 2–3 days in uncomplicated cases.
First Aid
- Offer your animal small amounts of water frequently.
- Pay attention to whether your animal urinates as usual (frequency, amount, color).
- Offer small meals with easily digestible food (rice, chicken) or commercially available diets for gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. Inflammatory conditions.
- If Vomiting persists, do not feed anything for 24 hours.
- If Vomiting persists even after water intake, introduce your animal to a veterinarian, as Dehydratation (drying out) threatens.
When should you see a vet sooner?
→ Orange if there is blood in the vomit/stool, severe abdominalThe term "abdominal" refers to anything that concerns the belly or the abdomen. It is an adjectival expression used to describe the location, symptoms, or conditions that occur in the abdominal area. pain, repeated vomiting, for puppies/seniors, or severe lethargy.
You should introduce puppies to a veterinarian at the first Symptoms:.
Also, in the case of bloody Vomiting or bloody Diarrhea or significant Fever (> 39 degrees Celsius), introduce your animal to a veterinarian immediately.
Diagnosis
The diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. of gastroenteritis is made by a systematic approach that includes a thorough Anamnese, clinical examination, and targeted diagnostic tests.
The Anamnese provides important information on possible causes. Information is collected on feeding, possible ingestionIngestion refers to the intake of substances through the mouth and their delivery to the digestive tract. In dogs and cats, the ingestion of toxic substances, foreign objects, or incompatible foods can lead to health problems. of foreign material, Kontakt to other diseased animals, vaccinationVaccination is the process of administering a vaccine to develop immunity against a specific infectious disease. It is one of the most effective methods of prevention of infectious diseases. and deworming status, as well as pre-existing conditions. The clinical examination includes the assessment of the general condition and the vital parameters as well as a thorough PalpationPalpation is an examination method in which the condition of body tissues is assessed by feeling them with the hands. It is used to identify swelling, pain, or other abnormalities. of the AbdomenThe abdomen, also known as the abdominal cavity, is the part of the body located between the rib cage and the pelvis. It houses several important organs, including the stomach, liver, kidneys, intestines, and spleen.. Particular attention is paid to the assessment of the hydration status by mucous membrane condition, capillary filling time, and skin turgor.
Laboratory diagnostic tests are essential for the diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients.. A blood count can provide information on Inflammatory conditions processes (leukocytosis), infections, or anemia in chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Blood loss. SerumSerum is the liquid part of the blood that remains after coagulation. It does not contain blood cells or coagulation factors, but many other proteins, antibody and electrolytes. Serum is used in diagnostics for a variety of blood tests. biochemistry is used to assess organ functions and electrolyte balanceThe electrolyte balance refers to the balance of electrolytes in the body, which is essential for many physiological processes. Disturbances in the electrolyte balance can lead to serious health problems., with particular relevance to kidney and liver values as well as Natrium, potassiumPotassium is an essential mineral and electrolyte that is important for the function of nerves and muscles, including the heart muscle. Potassium also helps regulate fluid balance and blood pressure., and chlorideChloride is an electrolyte found predominantly in the blood and bodily fluids. It plays an essential role in maintaining fluid balance and the body's acid-base balance. levels. A comprehensive stool examination includes the macroscopic assessment (consistency, color, admixtures), microscopic examination for Parasit and their developmental stages, as well as specific tests for bacterial and viral pathogens. Flotation methods and direct smears can detect Parasit such as giardia, coccidia, or worm eggs. PCR tests and ELISA methods are used to detect specific viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. pathogens such as parvo- or coronaviruses. Bacteriological examinations with antibiogram can be useful if bacterial infections are suspected.
In unclear or therapy-resistant cases, imaging techniques such as X-rayX-ray is an imaging technique that uses X-rays to create images of the inside of the body. It is often used to diagnose bone fractures, lung diseases, and other conditions. or ultrasoundUltrasound refers to sound waves that are above the hearing threshold of the human ear. In medicine, ultrasound is used for diagnostic imaging procedures to visualize internal organs, tissues, and blood flow. can be used to identify foreign bodies, obstructions, or wall changes in the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. In rare cases, an Endoskopie with biopsyA biopsy is a medical procedure in which a small amount of tissue is removed from the body to be examined under a microscope for signs of disease. Biopsies can help diagnose cancer and other conditions. may be necessary to diagnose chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. Inflammatory conditions processes or neoplastic changes.
The differential diagnosisDifferential diagnosis is the process of weighing two or more conditions that cause similar symptoms to determine the specific cause of a patient's symptoms. includes other diseases with similar Symptomatik such as pancreatitis, foreign body ileus, invagination, neoplasias, or systemic diseases with gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. involvement.
Further veterinary measures
The diagnosis of gastroenteritis is made clinically.
The cause of the current Inflammatory conditions of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract is determined by laboratory diagnostic tests. These are stool analyses, rapid tests for pathogenA pathogen is a microorganism or virus that can cause disease in its host. Pathogens include bacteria, viruses, fungi, and parasites. detection, as well as parasitological and bacteriological examinations.
Depending on the result, specific pathogens are combated or only symptomatic therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. is performed.
In particular, viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. infections in dogs and cats can triggerA trigger is a stimulus that elicits a specific reaction or state. In veterinary medicine, this can refer to emotional responses, such as fear or aggression, or medical conditions, such as seizures in dogs and cats. complicated disease courses. They are often characterized by watery DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. and can quickly lead to Dehydratation, especially in young animals.
Further measures for Dehydratation are listed under Dehydratation (—>Dehydratation).
Supplements
The therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. of gastroenteritis depends on the cause, the severity of the disease, and the general condition of the patient. It includes both symptomatic and causal therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. approaches.
Fluid and electrolyte therapy forms the basis of the therapy, especially in dehydrated patients. In mild to moderate Dehydratation, oral rehydration may be sufficient, while in severe Dehydratation or persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. Vomiting, intravenous fluid therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. with a balanced electrolyte composition is indicated. The infusion rate is individually adjusted to the hydration status and the ongoing losses.
Dietary therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. plays a central role. After a short period of food abstinence of 12 to 24 hours (not in cats and puppies), an easily digestible bland diet is offered in small, frequent portions. Commercial diet feed with high digestibility, moderate fat content, and high-quality proteins are suitable. Alternatively, a homemade bland diet of cooked rice or potatoes with lean chicken or low-fat curd can be offered. The change of feed should be gradual to avoid overtaxing the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract.
Drug therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. includes various groups of active substances. AntiemeticsAntiemetics are medications used to prevent or treat Nausea and Vomiting. In dogs and cats, they are used in various situations, including after surgery, for motion sickness, or for certain conditions that cause Nausea. such as maropitant or metoclopramide can be used for persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. Vomiting. Proton pump inhibitors or H2 receptor antagonists reduce gastric acid production and protect the irritated mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients.. Antidiarrheals such as loperamide should only be used under strict veterinary control and not for infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems.. Probiotics can contribute to the restoration of the physiological intestinal flora / gut microbiotaThe intestinal flora / gut microbiota, also called microbiome, refers to the community of microorganisms that live in the digestive tract. A healthy intestinal flora / gut microbiota is crucial for digestion, the immune system, and the overall health of dogs and cats. and are increasingly used as supportiveSupportive refers to supportive treatments that aim to alleviate symptoms and improve quality of life without directly treating the underlying cause of the disease. therapies. Antibiotics are only indicated for proven bacterial infections or suspected bacterial translocation and should be used specifically according to an antibiogram. AntiparasiticsAntiparasitics are medications or substances used to treat parasitic infestations, such as worms, protozoa, and ectoparasites. They work by killing the parasites or inhibiting their growth. are used when appropriate evidence is available.
In severe cases, inpatient admission with intensive monitoring and therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. may be necessary. In rare cases, parenteral nutrition may be required if prolonged food abstinence is unavoidable.
The duration of therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. depends on the underlying disease and the clinical course. While acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention., uncomplicated gastroenteritis often subsides within a few days, chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. forms may require long-term treatment.
Prognosis and aftercare
The Prognose of gastroenteritis depends on the underlying cause, the severity of the disease, the age and general health of the animal, and the time of the start of therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions..
In acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention., uncomplicated gastroenteritis, the Prognose is usually good. Most animals recover completely within 3–5 days if adequate therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. is initiated. In viral infections such as parvovirus, the Prognose can be cautious to poor, especially in young animals or immunosuppressed patients. The mortalityMortality is the death rate within a population over a specific period. It is often used to assess the severity of diseases or the effectiveness of health measures. rate can be 10–20% here despite intensive therapy. ChronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. gastroenteritis, especially in underlying Inflammatory conditions bowel diseases, often requires long-term treatment and regular check-ups but can enable an acceptable quality of life with good management.
The aftercare includes various aspects that are important for a complete recovery and Prävention of relapses. The change of diet should be gradual. After the acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. Symptoms: have subsided, the bland diet is slowly mixed with the regular food over 5–7 days, with the proportion of normal food being gradually increased. In the case of food intolerances, a permanent change to a hypoallergenic diet or an eliminationElimination refers to the process by which waste products and toxins are removed from the body. This includes excretion via the kidneys (urine), intestines (stool), lungs (breath), and skin. diet may be necessary.
Regular check-ups are important to check the success of the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. and to make adjustments if necessary. These include clinical examinations, weight checks, and laboratory tests if necessary. In chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. or recurrent gastroenteritis, long-term therapies with immunosuppressants or specific diets may be required.
Preventive measures to avoid relapses include regular deworming according to a veterinary scheme, complete vaccinationVaccination is the process of administering a vaccine to develop immunity against a specific infectious disease. It is one of the most effective methods of prevention of infectious diseases. programs against relevant viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. pathogens, hygienic feeding with high-quality food, and the avoidance of sudden food changes. In the case of several animals in the household, hygiene measures should be taken to prevent transmission in the case of infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. causes.
Summary
Gastroenteritis in dogs and cats is a common condition characterized by inflammation of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. The causes are varied, ranging from infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. agents (viruses, bacteria, parasites) and food intolerances to toxins or systemic diseases. The clinical symptoms typically include Vomiting, DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., loss of appetite, and, in severe cases, dehydrationDehydration occurs when the body loses more fluid than it takes in. This can lead to a number of problems, including headaches, Dizziness, and in extreme cases, renal failure or Cardiovascular collapse. and lethargy.
The diagnosis is made through a thorough medical historyThe medical history is the systematic collection of a patient's medical history through questioning. It includes information about previous illnesses, treatments, allergies, and lifestyle habits., clinical examination, and targeted laboratory tests, with stool examinations for pathogens playing a central role. The therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. is based on adequate fluid and electrolyte replacement, dietary measures with easily digestible bland food, and, depending on the cause, specific drug treatments such as antiemeticsAntiemetics are medications used to prevent or treat Nausea and Vomiting. In dogs and cats, they are used in various situations, including after surgery, for motion sickness, or for certain conditions that cause Nausea., antidiarrheals, antibiotics, or antiparasiticsAntiparasitics are medications or substances used to treat parasitic infestations, such as worms, protozoa, and ectoparasites. They work by killing the parasites or inhibiting their growth..
The prognosis is good in acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention., uncomplicated cases, but may be more guarded in severe viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. infections or chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. conditions. Aftercare includes a gradual change in diet, regular check-ups, and preventive measures to avoid relapses. It is particularly important to seek veterinary attention early in at-risk patients such as puppies, kittens, or older animals with concomitant diseases, as life-threatening complications can occur quickly here.
Outlook on current research
Research in the field of gastroenteritis in small animals has made significant progress in recent years, leading to a better understanding of the pathophysiologyPathophysiology deals with the changes in physiological processes caused by diseases or injuries. It examines how these changes lead to the symptoms and signs of a disease. and new therapeutic approaches.
A central research focus is on the microbiome of the gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. tract. Recent studies show that the composition of the intestinal flora / gut microbiotaThe intestinal flora / gut microbiota, also called microbiome, refers to the community of microorganisms that live in the digestive tract. A healthy intestinal flora / gut microbiota is crucial for digestion, the immune system, and the overall health of dogs and cats. significantly influences the health of the digestive system and can be significantly altered in cases of gastroenteritis. Using modern sequencing methods, microbiome research enables a detailed characterization of the microbial communities and their changes in various diseases. This results in new therapeutic approaches such as tailored probiotics and prebiotics that specifically target the restoration of a healthy microbiome.
Fecal microbiota transplantation (FMT) is becoming increasingly important as a therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. option in therapy-resistant cases. InitialInitial means beginning or at the start. In medicine, it can refer to the first symptoms of a disease or the first phase of a treatment process. clinical studies in dogs with chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. enteropathy or recurrentRecurrent refers to a disease that repeatedly returns or worsens after a temporary remission or improvement. Clostridium difficile infections show promising results. The standardization of donor selectionSelection refers to the process of natural or artificial selection of specific individuals for reproduction, based on desired genetic traits. In breeding, this is applied to promote specific characteristics in dogs and cats., preparation, and application is the subject of current research projects.
In the field of immunology, the complex interactions between the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. barrier, the immune system, and the microbiome are being intensively researched. A better understanding of the immunological mechanisms in inflammatory bowel diseases could lead to more targeted immunomodulatoryImmunomodulatory describes the ability of a substance to modify the reaction of the immune system. Immunomodulatory drugs can either stimulate the immune system to fight infections more effectively or suppress it to prevent overreactions. therapies. Biomarkers for the early detection and monitoring of the course of gastroenteritis are being developed to enable more precise diagnosisA diagnosis is the identification of a disease or condition by its symptoms and/or results from diagnostic tests. It is the first step in the management and treatment of patients. and individualized therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. decisions. Parameters such as fecal calprotectin, alpha1-proteinase inhibitor, or specific microRNAs could refine diagnostics in the future.
Nutritional research focuses on the development of special diet formulations with bioactive components such as medium-chain fatty acids, specific amino acids, or polyphenols that have anti-inflammatory and gut-protective properties. The use of dietary supplements such as omega-3 fatty acids, curcumin, or certain plant substances is also being scientifically investigated.
New antiviral substances against specific pathogens such as parvoviruses are under development and could expand the therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. options for viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. gastroenteritis. At the same time, improved vaccines are being developed that offer more comprehensive and longer-lasting protectionProtection refers to safeguarding against diseases or harm. In veterinary medicine, this can include protecting animals through vaccinations, the use of parasite control products, or providing a safe environment..
These research approaches promise more precise diagnostics, individualized therapyTherapy refers to the treatment of diseases or disorders with the aim of alleviating symptoms, promoting healing, or improving quality of life. Therapies can be medicinal, surgical, or through other medical interventions. concepts, and improved preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. strategies for gastroenteritis in dogs and cats in the future.
Frequently asked questions (FAQs)
- How do I recognize gastroenteritis in my animal?
Typical signs are Vomiting, DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. (possibly with mucus or blood admixtures), loss of appetite, increased bowel sounds, and general fatigue. In severe cases, Dehydratation and Fever may be added. - What causes gastroenteritis?
The causes are varied and range from infectiousInfectious describes the ability of a pathogen to be transmitted from one individual to another and trigger an infection. It also refers to diseases caused by such pathogens. pathogens (viruses, bacteriaBacteria are microscopic, single-celled organisms that exist in almost every environment on Earth. Some types of bacteria are beneficial or even essential to life, while others can cause disease., Parasit) to food intolerances and the ingestionIngestion refers to the intake of substances through the mouth and their delivery to the digestive tract. In dogs and cats, the ingestion of toxic substances, foreign objects, or incompatible foods can lead to health problems. of spoiled food or foreign material to toxins, medication side effects, or Stress. - When should I take my animal to the veterinarian?
You should go to the veterinarian immediately if you have bloody Vomiting or DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems., persistentPersistent means lasting or continuing for an extended period. In veterinary medicine, it can refer to chronic diseases or symptoms that do not subside. Vomiting (more than 24 hours), Fever above 39 °C, clear signs of Dehydratation, or Lethargy. Especially puppies, kittens, and older animals should be introduced at the first signs of gastroenteritis. - How is gastroenteritis treated?
The therapy includes fluid and electrolyte balanceThe electrolyte balance refers to the balance of electrolytes in the body, which is essential for many physiological processes. Disturbances in the electrolyte balance can lead to serious health problems., dietary measures with easily digestible bland diet, and, depending on the cause, drug therapies such as antiemeticsAntiemetics are medications used to prevent or treat Nausea and Vomiting. In dogs and cats, they are used in various situations, including after surgery, for motion sickness, or for certain conditions that cause Nausea., gastric protection, antibiotics for bacterial infections, or Antiparasitics for Parasit infestation. - Can I help my animal at home with mild gastroenteritis?
For mild Symptoms:, you can offer your animal small amounts of water frequently and start with small portions of bland diet (cooked rice with chicken) after 12–24 hours of food abstinence (not in cats and puppies). If the Symptoms: persist or worsen, a visit to the veterinarian is necessary. - How long does gastroenteritis last in dogs and cats?
Uncomplicated, acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. gastroenteritis usually subsides within 3–5 days. In viralViral refers to viruses and their effects on the organism. Viral infections in dogs and cats can range from harmless colds to severe, life-threatening diseases. infections or chronicChronic refers to a condition or disease that is long-lasting or permanent. Chronic diseases often develop slowly and can lead to persistent or recurring health problems over time. forms, the disease can last for several weeks and require longer-term treatment. - Can gastroenteritis be transmitted to humans?
Some pathogens of gastroenteritis, such as certain salmonella, campylobacter, or giardia, have zoonotic potential and can be transmitted to humans. Therefore, good hygiene measures are important when handling diseased animals. - How can I prevent gastroenteritis?
Preventive measures include regular deworming, complete vaccinationVaccination is the process of administering a vaccine to develop immunity against a specific infectious disease. It is one of the most effective methods of prevention of infectious diseases. programs, hygienic feeding with high-quality food, avoidance of sudden food changes, and keeping the animals away from waste or spoiled food. - Are certain breeds more susceptible to gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. diseases?
Yes, some breeds show a genetic Prädisposition for certain gastrointestinalGastrointestinal refers to the gastrointestinal tract, a system that extends from the oral cavity to the anus and is responsible for the digestion of food and the absorption of nutrients. diseases. Dogs of the German Shepherd breed are more susceptible to Inflammatory conditions bowel diseases, while Yorkshire Terriers are more likely to suffer from pancreatitis, which can lead to secondary gastroenteritis. - What role do probiotics play in the treatment of gastroenteritis?
Probiotics can support the healthy intestinal flora / gut microbiotaThe intestinal flora / gut microbiota, also called microbiome, refers to the community of microorganisms that live in the digestive tract. A healthy intestinal flora / gut microbiota is crucial for digestion, the immune system, and the overall health of dogs and cats. and promote the regeneration of the intestinalIntestinal refers to the intestine, the part of the digestive tract that extends from the stomach to the anus. Intestinal diseases affect the small and/or large intestine. mucosaMucosa, also called mucous membrane, refers to the moist lining of body cavities that are connected to the outside world, such as the mouth, nose, lungs, and gastrointestinal tract. It serves to protect and facilitate the absorption of nutrients.. Studies show that certain probiotic strains can shorten the duration of acuteAcute refers to a condition that occurs suddenly and is usually of short duration. In a medical context, it describes symptoms or illnesses that can quickly become serious and require immediate attention. DiarrheaDiarrhea refers to the condition of frequent, watery bowel movements, which can be a sign of infections, digestive disorders, or other health problems. diseases and strengthen the immune systemThe immune system is the body's defense system against infectious agents such as bacteria, viruses, fungi, and parasites. It comprises a complex network of organs, cells, and molecules that work together to protect the body.. However, the selectionSelection refers to the process of natural or artificial selection of specific individuals for reproduction, based on desired genetic traits. In breeding, this is applied to promote specific characteristics in dogs and cats. should be made in consultation with the veterinarian, as not all products are suitable for animals.