Home » Symptoms » Cat Symptoms A-Z » Round, Open Wounds

Round, Open Wounds in cats

Author: Dr. med. vet. Gisa Löwe | Last modified: 08.02.2026

Unsure about what’s wrong with your pet? Feel free to use our Symptom Checker for more clarity

Round, open wounds in cats are Skin lesions on the skin characterized by the loss of skin tissue and have a round or oval shape. These Wounds can develop for various reasons and often require a veterinary examination to determine the cause and initiate appropriate treatment.

Can Occur with the Following Diseases:

Skin Ulcer (Cutaneous Ulcer)

Grundlagen und mögliche Ursachen

A cat’s skin is a complex organ consisting of several layers and provides an important protective function against external influences and pathogens. If this protective barrier is damaged, open Wounds can occur. Round, open Wounds can be caused by physical traumas, infections, allergic reactions, or autoimmune diseasesAutoimmune diseases are conditions in which the immune system mistakenly attacks the body's own cells or tissues as if they were foreign substances. Examples in dogs and cats include autoimmune hemolytic anemia and systemic lupus erythematosus..

A common cause of round, open Wounds in cats are bite injuries from other animals. These Wounds can become infected and lead to abscesses if 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. enter the wound and multiply. Another common problem are Skin infections that can be caused by 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., fungi, or parasites. Infections caused by the skin fungus Microsporum canis can also cause round, bald, and inflamed areas.

Autoimmune diseasesAutoimmune diseases are conditions in which the immune system mistakenly attacks the body's own cells or tissues as if they were foreign substances. Examples in dogs and cats include autoimmune hemolytic anemia and systemic lupus erythematosus. such as the pemphigus complex can lead to round, open Wounds in cats. In these diseases, 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. attacks the body’s own skin cells, leading to Skin lesions. Allergic reactions to food, insect bites, or environmental factors can also irritate the skin and cause Wounds.

There are also cases where tumors or cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. can cause round, ulcerating Wounds on the skin. These should be examined by a veterinarian as soon as possible to ensure accurate 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 treatment.

Typische Begleitsymptome

Inflammation: The wound is often surrounded by redness and Swelling, which indicates an inflammatory reaction of the body. This reaction is an attempt by 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. to fight off infections and promote healing.
Pain: Open Wounds are often painful, which can cause the cat to lick the affected area, Scratching, or react sensitively to touch.
Itching: Especially in the case of allergic reactions or infections, severe Itching can occur, which causes the cat to further irritate the wound.
Discharge: Infected Wounds can secrete a fluid that can be clear, purulentPurulent refers to pus or the production of pus, which may indicate a bacterial infection. Purulent inflammatory conditions are often painful and may have significant swelling and redness., or bloody. This indicates a progressiveProgressive describes a condition or disease that worsens over time. This term is often used to characterize the course of an illness that causes increasingly severe symptoms or damage. 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..
Hair loss: There may be a loss of fur around the wound, especially if the cat frequently licks or scratches the area.
Behavioral changes: A cat with Pain or discomfort may withdraw, be less active, or show signs of 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. and Restlessness.

Wann zum Tierarzt?

It is important to see a veterinarian if the wound shows no signs of healing after one to two days or gets worse. Signs that an immediate visit to the veterinarian is necessary include severe Swelling, severe discharge, an unpleasant odor, or if the cat shows signs of Fever, such as lethargy or loss of appetite.

If the cat repeatedly develops Wounds in the same place or appears to be impaired in its general well-being, a veterinary examination should also be carried out. This could indicate an underlying 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. disease or a systemic 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 cases where an allergic reaction, an autoimmune disease, or cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas. is suspected, early 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 crucial for 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. 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. of the cat.

Symptomerkennung für den Tierhalter und tierärztliches diagnostisches Vorgehen

It is important for the pet owner to recognize the symptoms early. Pay attention to changes in the cat’s behavior, such as increased Licking or Scratching in a certain area, as well as visible Skin changes. A daily check of the coat and skin can help to identify problems early.

During the veterinary visit, the veterinarian will first take 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. to determine possible causes. This includes questions about diet, pre-existing conditions, Contact with other animals, and recent changes in the cat’s environment.

A physical examination of the wound will be performed to determine the severity and type of Lesions. The veterinarian may take samples for microscopic examination or a microbiological cultureA microbiological culture is a lab test in which samples of bodily fluids or tissues are cultured on nutrient media to promote the growth of bacteria, fungi, or other microorganisms. This helps in the diagnosis of infectious diseases in dogs and cats. to identify 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. In some cases, blood tests or skin biopsies may be necessary to diagnose autoimmune causes or cancerCancer refers to the uncontrolled proliferation of cells that can lead to tumors or spread throughout the body. Various types of cancer occur in dogs and cats, ranging from skin cancer to lymphomas..

Was kann der Tierhalter tun und professionelle Therapieoptionen

As a first measure, the pet owner can gently clean the wound with a sterile saline solution to remove dirt and 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.. It is important not to use alcohol-containing or irritating substances that could further irritate the wound.

Try to prevent the cat from Licking or Scratching the wound by applying a neck collar (Elizabethan collar). This prevents the cat from impairing healing and causing further infections.

Keep the cat’s environment clean and hygienic to minimize the risk 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.. Make sure that the cat’s sleeping place is cleaned regularly and that it remains in a stress-free environment to support the healing process.

It is crucial to administer all medications prescribed by the veterinarian exactly as directed and to attend regular check-up appointments to monitor the healing progress of the wound. Early and appropriate care can make a big difference in the healing process and prevent further complications.

Ausblick auf aktuelle Forschung

Research on round, open Wounds in cats is currently focused on understanding the healing processes and the factors that affect wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity.. Scientists are investigating how certain proteins and growth factors can promote tissue regeneration. One area that is receiving particular attention here is the role of stem cells in wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity.. It is being investigated whether administering stem cells near the wound can accelerate healing and reduce Scar tissue formation.

Another important aspect of current research is the development of new dressing materials specifically designed for the treatment of cat Wounds. These materials are designed to keep the wound moist while preventing 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. from entering, which can shorten healing time. Some of these materials contain antimicrobialAn antimicrobial substance is an agent that serves to inhibit the growth of microorganisms such as bacteria, viruses, fungi, and protozoa, or to kill them. Antimicrobials are frequently used to treat infections. agents that help prevent 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.. This is particularly important because cat Wounds are often caused by Scratching or other traumas that increase the risk of bacterial 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..

The role of nutrition in wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity. is another area of research. It is being investigated how certain nutrients, such as omega-3 fatty acids and antioxidants, can support the healing processes. Researchers are working to develop specific nutritional plans that accelerate recovery and promote the health of the skin and coat. These findings could lead to dietary changes being recommended to optimize wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity..

Another innovative approach in research is the use of laser 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 other physical therapies to promote wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity.. Studies show that these techniques can improve blood circulation in the area of the wound and stimulate cell renewal. Researchers are also investigating the use of photodynamic 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 which light is used in combination with special chemicals to promote healing and fight infections.

In addition, the genetic predispositionA predisposition is an innate inclination or susceptibility of an organism to certain diseases or conditions. In dogs and cats, there may be a genetic predisposition to certain conditions such as hip dysplasia or certain heart diseases. for certain wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity. disorders in cats is being investigated. Researchers are trying to identify genetic markers that indicate an increased susceptibility to protracted or poorly healing Wounds. In the future, these findings could help to develop preventive measures or to tailor treatment individually to the genetic needs of a cat.

Häufig gestellte Fragen

What causes round, open wounds in cats? Round, open Wounds in cats can be caused by various causes, including traumas such as Scratching or bites, infections, allergic reactions, or autoimmune diseasesAutoimmune diseases are conditions in which the immune system mistakenly attacks the body's own cells or tissues as if they were foreign substances. Examples in dogs and cats include autoimmune hemolytic anemia and systemic lupus erythematosus.. An accurate 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. by a veterinarian is important to determine the cause and begin appropriate treatment.
How can I tell if my cat’s wound is infected? Signs of 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. in a wound include redness, Swelling, Pus formation, unpleasant odor, and excessive warmth in the area of the wound. If these symptoms occur, you should see a veterinarian immediately.
How should I clean my cat’s wound? Gently clean the wound with lukewarm water and a mild, antiseptic solution suitable for veterinary use. Avoid using alcohol or hydrogen peroxide, as these can delay healing. Gently dry the wound with a clean cloth.
Can I apply human wound ointments to my cat’s wound? It is not recommended to use human wound ointments on cat Wounds, as they may contain ingredients that are harmful to cats. Instead, use products specifically designed for animals or follow your veterinarian’s recommendations.
How can I prevent my cat from licking its wound? To prevent your cat from Licking the wound, you can use a special protective collar (also known as a neck brace). This prevents the cat from reaching its wound, which supports healing and reduces the risk 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..
When should I take my cat to the vet? You should see a veterinarian immediately if the wound is bleeding heavily, shows signs 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., or if your cat has other symptoms such as Fever, lethargy, or loss of appetite. Even if the wound shows no signs of healing after a few days, a visit to the veterinarian is advisable.
How long does it take for a wound to heal on a cat? The healing time of a wound in a cat depends on the cause, size, and location of the wound, as well as the cat’s general health. Smaller, uncomplicated Wounds can heal within a few days, while larger or infected Wounds can take several weeks.
Can a poor diet affect wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity.? Yes, an inadequate diet can affect wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity. in cats. Nutrients such as proteins, vitamins, and minerals are crucial for tissue repair and 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.. A balanced diet promotes faster and more efficient healing.
Are there any natural remedies to support wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity. in cats? Some natural remedies, such as Aloe Vera or honey, can support wound healingWound healing is the natural process of repairing tissue damage, occurring in phases including inflammation, tissue regeneration, and wound contraction, to restore tissue integrity. because they have antimicrobialAn antimicrobial substance is an agent that serves to inhibit the growth of microorganisms such as bacteria, viruses, fungi, and protozoa, or to kill them. Antimicrobials are frequently used to treat infections. and anti-inflammatory properties. However, it is important to seek the advice of a veterinarian before using such remedies to ensure that they are safe and appropriate.
What should I do if my cat repeatedly scratches a wound open? If your cat repeatedly scratches a wound open, it is important to determine the underlying cause, such as Itching due to allergies or parasites. A veterinarian can recommend appropriate measures, such as medications to relieve Itching or the use of a protective collar to promote healing.