Home » Diseases » In dogs » Sarcoptic Mange (Parasitic Infection with Sarcoptes Mites, Mange)

Sarcoptic Mange (Parasitic Infection with Sarcoptes Mites, Mange) in Dogs

Occurrence: common
Location of illness: Skin/Fur

Author: Dr. med. vet. Gisa Löwe | Last modified: 06.11.2025

Sarcoptic mange is a contagiousContagious means infectious. Diseases that can easily be transmitted from one animal to another or from animals to humans are referred to as contagious. skin disease in dogs caused by infestation with the parasiticParasitic refers to diseases or conditions caused by parasites. Parasitic infections can affect the digestive tract, skin, and other organ systems. mite Sarcoptes scabiei var. canis. It leads to severe itching and Skin changes.

The most important facts at a glance

Sarcoptic mange in dogs is caused by the microscopic mite Sarcoptes scabiei, which lives as a parasiteA parasite is an organism that lives on or in another living being (the host) and feeds at its expense. Parasites can cause a variety of diseases in animals and humans. in the dog’s skin. InfectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. occurs mainly through direct contact with infected animals. These mites can also infest humans, but only cause temporary symptoms there because they cannot reproduce. Typical symptoms in dogs are severe Itching, Hair loss, and Skin rash with Crusts formation, especially on the ears and limbs. 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. is made by clinical signs and the detection of mites in skin samples, although serological tests can also be helpful.

Treatment includes antiparasitic drugs such as ivermectin and selamectin to kill the mites, as well as additional agents to relieve the Itching and treat secondary infections. The prognosisThe prognosis is the prediction of the likely course and outcome of a disease based on the general state of health, the nature of the disease, and the response to treatment. It can provide information on how a disease is expected to develop. is good with timely treatment, but untreated cases can lead to severe skin damage. PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. includes avoiding contact with infected animals and regular use of antiparasitic agents. Research focuses on the genetic analysis of the mites, the development of vaccines, and improved diagnostic methods to combat the disease more effectively. Good hygiene practices also help reduce the risk of transmission.

Causes

Sarcoptes scabiei is a microscopic mite that belongs to the family Sarcoptidae. These mites are obligate parasites, meaning they require a host to survive and reproduce. The infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. occurs when the female mites burrow tunnels into the upper skin layer of the dog to lay their eggs. The entire life cycle of the mite, from egg laying to the adultThe term "adult" refers to an individual who has reached full physical development and is considered an adult. In veterinary medicine, this term is used to describe animals that have completed growth and are of reproductive age. stage, takes about two to three weeks.

The main transmission route of sarcoptic mange is direct contact with an infected animal. Since the mites can only survive outside the host for a short time, transmission via contaminatedContaminated describes something that has been polluted by harmful microorganisms, chemicals, or other dangerous substances. In veterinary medicine, this can affect food, water, toys, or the environment. environmental materials is less common, but still possible. The disease is particularly common in animal shelters, kennels, or other environments where many dogs live together in close quarters.

The mites are also able to infest humans, leading to so-called “pseudoscabies”. However, this is 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. because the mites cannot reproduce on the human body. Infestation can lead to temporary Itching and Skin rash.

Symptoms

Very common symptoms:

Common symptoms:

Rare symptoms:

The main symptom of sarcoptic mange in dogs is intense Itching, which is triggered by an allergic reaction to the mites and their excretions. This causes the dogs to frequently scratch, bite, and rub, leading to further skin damage.

The most common Skin changes include redness, Crusts formation, and Hair loss, especially on the ears, elbows, 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., and legs. In the advanced stage, the skin may thicken and take on a scaly or leathery texture. Secondary bacterial infections are common because the damaged skin is more susceptible to 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..

Some dogs may also show general signs of discomfort, such as Lethargy or loss of appetite. Since the Itching can be very stressful, there may also be Behavioral changes such as Irritability or Nervousness.

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 sarcoptic mange is based on a combination of clinical signs, 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., and diagnostic tests. The 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. may provide clues to possible contact with infected animals. The clinical signs, especially the severe Itching and typical Skin changes, are often suggestive.

The gold standard for confirming 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. is the detection of the mites or their eggs by Skin scrapings. A small amount of skin is scraped off and examined under the microscope. However, this test may be negative because the mites may be present in small numbers or hidden deep in the skin.

Another diagnostic approach is the use of serological tests that detect antibodies against Sarcoptes scabiei. These tests can be helpful, especially when direct detection of the mites is difficult. However, false-negative results can occur, especially in the early stages of infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease..

Therapy

Treatment for sarcoptic mange includes several approaches to kill the mites, relieve the Itching, and treat secondary infections. One of the most common treatments is the use of antiparasitic drugs, such as ivermectin, selamectin, or moxidectin. These medications can be administered as spot-on preparations, tablets, or injections.

In addition, shampoos and baths with insecticidal agents can help reduce the mite count on the skin surface. However, these should be used in combination with systemic treatments, as they alone are often not sufficient to completely eliminate the infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease..

To relieve the Itching and reduce inflammation, corticosteroidsCorticosteroids are a class of steroid hormones that occur naturally in the body and can also be produced synthetically. They have anti-inflammatory and immunosuppressive properties and are used in veterinary medicine to treat a variety of conditions. or antihistaminesAntihistamines are medications that block the effects of histamine in the body, thereby alleviating allergic reactions. They are used in dogs and cats to treat Itching, Skin inflammation, and other allergy symptoms. can be administered. In severe cases of secondary bacterial infections, antibiotics are necessary.

Prognosis and follow-up care

The prognosis for dogs with sarcoptic mange is generally good if diagnosed and treated promptly. With the right 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., the symptoms usually subside within a few weeks. However, it is important to continue treatment for the recommended duration to ensure that all mites are killed.

Untreated, however, sarcoptic mange can lead to severe skin damage and significant suffering. In extreme cases, it can lead to a 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. skin disease that is more difficult to treat and requires a longer recovery time.

Prevention

Effective preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. of sarcoptic mange involves avoiding contact with infected animals. Dogs living in communities such as animal shelters or kennels should be regularly checked for signs of mange to ensure early detection and treatment.

Regular use of antiparasitic agents that are also effective against Sarcoptes mites can serve as a preventive measure, especially in areas where the disease is common. Good hygiene and regular cleaning of the environment can also help reduce the risk of transmission.

Since the mites can also infest humans, it is important to pay attention to good personal hygiene and consult a doctor if an infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease. is suspected. This helps minimize the spread of mites between humans and animals.

Outlook on current research

In current research on sarcoptic mange in dogs, scientists are focusing on various aspects of the disease to develop better diagnostic and treatment options. A significant area of research is the genetic analysis of Sarcoptes mites to understand their genetic diversity and adaptation mechanisms. This could help develop more resistant treatment strategies and prevent the mites from adapting to current treatments.

Another important area of research is the development of vaccines. Although there are currently no vaccines against sarcoptic mange, researchers are investigating the immune responses of dogs to Sarcoptes infections to identify potential vaccine candidates. The challenge is to identify the specific antigens that 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. a protective 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..

In addition, work is being done to improve diagnostic tests. Current tests are often based on clinical symptoms and skin examinations. The development of molecular tests that recognize specific DNADNA (deoxyribonucleic acid) is the molecule that carries the genetic instructions for the development, function, and reproduction of all known living organisms and many viruses. It is located in the cells of an organism and contains the information for heredity. sequences of the mites could lead to a more accurate and faster 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.. This is especially important in cases where the symptoms do not clearly indicate sarcoptic mange.

Another area of research is investigating the environmental survivability of Sarcoptes mites. The goal is to better understand how long the mites can survive in different environments and what environmental factors influence their spread. Such information could help control the spread of the disease in animal communities.

Researchers are also investigating alternative treatment methods, including the use of natural or herbal substances that may have acaricidal effects. These studies are particularly important given the fact that some chemical treatments can have side effects or have become resistantResistant means being insensitive to a substance, drug, or treatment. In dogs and cats, resistance can refer to the ineffectiveness of antibiotics against certain bacterial strains or the insensitivity of parasites to certain pesticides. to the mites.

Overall, the research aims to expand knowledge of the biology of Sarcoptes mites and the pathogenesisPathogenesis describes the process of the origin and development of a disease, including the mechanisms that lead to the disease's symptoms and signs. of mange. By better understanding these factors, scientists hope to develop more advanced and effective preventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. and treatment strategies that can ultimately improve the well-being of affected dogs.

Frequently asked questions (FAQs)

What is sarcoptic mange? Sarcoptic mange is a parasiticParasitic refers to diseases or conditions caused by parasites. Parasitic infections can affect the digestive tract, skin, and other organ systems. skin disease in dogs caused by the Sarcoptes scabiei mites. These mites burrow into the animal’s skin, causing severe Itching, redness, and Hair loss.
How is sarcoptic mange transmitted? The disease is transmitted through direct contact with an infected animal or through contact with contaminatedContaminated describes something that has been polluted by harmful microorganisms, chemicals, or other dangerous substances. In veterinary medicine, this can affect food, water, toys, or the environment. surfaces. The mites can jump from one animal to another, which facilitates the spread.
What symptoms does a dog with sarcoptic mange show? Typical symptoms include intense Itching, Skin redness, Crusts formation, and Hair loss, especially on the ears, elbows, and 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.. In more severe cases, Skin infections can occur.
How is the disease diagnosed? 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. is usually made by clinical examination and skin samples, which are examined under the microscope for the presence of mites. In some cases, serological tests are used to detect antibodies against the mites.
Can sarcoptic mange be transmitted to humans? Yes, the mites can temporarily pass to humans and cause symptoms such as itchy Skin rash. However, they do not reproduce on human skin and the symptoms usually subside on their own.
What treatment options are there? Treatment usually involves the use of acaricidal drugs, which are administered orally or topically depending on the severity of the infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease.. In addition, 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. and antibiotics may be needed to treat secondary infections.
How can you prevent a sarcoptic mange infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease.? PreventionPrevention includes measures taken to prevent diseases or injuries. In veterinary medicine, this includes vaccinations, parasite control, and health monitoring. includes avoiding contact with infected animals and regular check-ups with the veterinarian. Cleaning and disinfecting sleeping areas and toys is also important.
How long does the treatment for sarcoptic mange take? The duration of treatment can vary, but usually lasts several weeks. It is important to complete the treatment completely to prevent recurrence of the infectionAn infection is the colonization and multiplication of pathogens such as bacteria, viruses, fungi, or parasites in an organism, which often, but not always, leads to a disease..
Can all dogs get sarcoptic mange? Yes, all dog breeds and age groups can be affected, but dogs with weakened immune systems or those in close contact with other dogs are at higher risk.
What happens if sarcoptic mange is left untreated? Untreated sarcoptic mange can lead to severe skin damage, secondary bacterial infections, and general discomfort. In extreme cases, Weight loss and weakness can occur, which significantly impairs the dog’s quality of life.

When to visit the vet?

Non-urgent see a veterinarian within 2–3 days

If the condition worsens / symptoms persist, consult a veterinarian.