Skin ulceration (ulceration) in cats

Author: Dr. med. vet. Gisa Löwe | Last modified: 07.07.2026
Table of contents

When to visit the vet?

Urgent see a veterinarian within 24 hours

?

RED in cases of extensive skin detachment, Fever, severe pain, rapid spread, necrosis, or mucosal involvement.

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

Definition of

A cutaneous ulcer or ulceration in cats is an open wound or lesion on the skin surface caused by the loss of skin tissue. These wounds are often difficult to heal and can occur due to a variety of causes, including infections, traumas, or diseases.

Can Occur with the Following Diseases:

Grundlagen und mögliche Ursachen

A cat’s skin consists of several layers, including the epidermis, dermis, and subcutis. An ulcer forms when these layers are damaged, creating an open area that can be prone to infection. The regenerative capacity of the skin is crucial for healing, but this process is often disrupted in ulcerations.

Infections can be caused by bacteria, viruses, or fungi that penetrate the skin barrier and cause inflammatory conditions. Bacterial infections are particularly common and can be favored by injuries or other skin conditions.

Traumatic causes of cutaneous ulcers include scratching, bites, or other injuries. These can lead to secondary bacterial infections if not treated properly.

Autoimmune diseases can also cause ulcerations by causing the cat’s immune system to attack its own skin cells. Examples include pemphigus and lupus.

Neoplastic causes, such as skin tumors or cancer, can also appear in the form of ulcers, especially when they break through the skin and infiltrate the underlying tissue.

Allergies, both to environmental factors and to food, can lead to severe itching, which in turn causes scratching and possible skin damage. This damage can develop into ulcerations if left unchecked.

Hormonal imbalances, such as those that occur with thyroid diseases, can affect skin health and increase the risk of ulceration.

Typische Begleitsymptome

  • Redness and Swelling: An affected area may appear red and swollen, indicating inflammation.
  • Open wounds or lesions: Visible open areas on the skin that may bleed or weep are characteristic of ulcerations.
  • Itching: Often, the cat scratches or licks the affected area intensely, which can further delay healing.
  • Hair loss: Hair loss may occur on or around the ulcerated area.
  • Odor: Infected ulcers can develop an unpleasant odor.
  • Behavioral changes: The cat may appear irritated or lethargic, indicating pain or discomfort.
  • Fever: In cases of infection, the cat may develop a fever.
  • Loss of appetite: Pain or discomfort can cause the cat to eat less.

Wann zum Tierarzt?

A visit to the veterinarian is essential if the cat has an open wound that does not improve or worsens within a few days. Also, if the wound has an unpleasant odor or the cat shows signs of systemic diseases such as Fever or general weakness, a visit to the veterinarian is strongly advised.

If the cat shows Pain from scratching or Licking the wound, or if there is severe Bleeding, a veterinarian should be consulted immediately. The same applies if the wound increases rapidly in size or becomes deeper.

If a underlying systemic disease, such as an autoimmune disease or a tumor, is suspected, immediate veterinary clarification is necessary in order to initiate appropriate treatment and avoid complications.

Symptomerkennung für den Tierhalter und tierärztliches diagnostisches Vorgehen

As a pet owner, you should regularly check your cat’s skin for abnormalities. Look for open wounds, redness, swelling or behavioral changes such as excessive licking or scratching. Even if the cat often chews or bites on a certain spot, this can be an indication of a skin problem.

The vet will first perform a thorough physical examination. The vet will inspect the affected area and possibly take a skin biopsy or swab to determine the exact cause of the ulceration. In some cases, blood tests are necessary to rule out or confirm systemic diseases.

Additional diagnostic procedures, such as X-rays or ultrasound, may be necessary to identify deeper problems, especially if a tumor is suspected. Allergy tests can be performed if an allergic reaction is suspected as the cause.

Was kann der Tierhalter tun und professionelle Therapieoptionen

At home, make sure to keep the affected area clean and dry to prevent the wound from worsening. Avoid applying treatments or medications yourself without veterinary advice, as this could worsen the situation.

Protect the wound by preventing the cat from Licking or Scratching it. This can be achieved by applying a protective collar or special clothing that covers the wound.

Monitor the wound regularly for changes in size, color, or odor, and note any new symptoms that occur. This information can help the veterinarian assess the healing process and adjust the treatment.

Make sure your cat receives a balanced diet and is free from stress factors, as this can support healing. Keep regular follow-up appointments with the vet to monitor progress and adjust treatment if necessary.

Ausblick auf aktuelle Forschung

Current research on skin ulceration in cats is working intensively to identify the molecular mechanisms that lead to ulcerations. Scientists are particularly investigating the role of inflammatory conditions and immune responses. It is believed that certain inflammatory mediators, such as cytokines, are present in higher concentrations in affected cats and thus promote ulceration processes. These findings could help to develop more targeted therapeutic approaches in the future that modulate inflammatory responses and support the healing process.

Another focus of the research is on the role of environmental factors and genetic predispositions. Studies are being carried out to find out how environmental influences such as stress, nutrition or contact with certain chemicals increase the risk of cutaneous ulcers. Genetic analyses in cat populations with a high incidence of cutaneous ulcers could provide information about possible genetic markers that are associated with an increased susceptibility.

In therapeutic research, new treatment methods are being tested that include innovative materials for wound dressings. For example, researchers are developing bioactive wound dressings that are enriched with antimicrobial substances to prevent infections and promote the healing of cutaneous ulcers. In addition, regenerative therapies are being investigated that use stem cells or growth factors to accelerate the repair of damaged tissue.

Another exciting field in research is the investigation of microbial communities on the skin of cats. Researchers want to understand how the skin microbiome contributes to or prevents ulcerations. By analyzing the microbial composition and its changes in affected cats, scientists hope to develop new therapeutic approaches that use or modify the microbiome to prevent the development of ulcers.

In addition, the importance of early diagnosis is emphasized in research. Modern imaging techniques, such as high-resolution ultrasonography, are being further developed to detect subtle changes in the skin tissue before visible ulcerations occur. In the future, these technologies could lead to improved diagnostic tools that enable early and more precise identification of at-risk patients.

The investigation of pain mechanisms in cats with cutaneous ulcers is also an important topic. Scientists are investigating how nerve tracts are affected by ulcerations and which analgesics are most effective in cats to improve the well-being of the animals during healing. These findings could contribute to better pain therapy and thus to a higher quality of life for the affected cats.

The development of non-invasive biomarkers to monitor the healing process of cutaneous ulcers is another goal of the research. Scientists are working to identify specific biomarkers in the blood or urine that provide information about the condition and healing of the tissue. Such biomarkers could make it possible to better assess the therapeutic effectiveness of treatments and make adjustments to the treatment plan.

In summary, research on skin ulceration in cats is a dynamic and multidisciplinary field. The knowledge gained could not only lead to improved treatment options, but also help to deepen the understanding of the complex biological processes behind the ulceration. This in turn could lay the foundation for new therapeutic strategies for other skin diseases.

Frequently Asked Questions (FAQs)

1. What are the most common causes of cutaneous ulcers in cats?
Cutaneous ulcers in cats can be caused by various factors, including bacterial infections, fungal infections, autoimmune diseases, and traumas. Allergies and parasitic infestations, such as fleas or mites, are also common triggers of cutaneous ulcers.
2. How do I recognize cutaneous ulcers in my cat?
Cutaneous ulcers in cats often present as open, often weeping wounds that may be covered with Crusts. They can be accompanied by redness, Swelling, and Hair loss. If an ulcer is suspected, it is important to consult a veterinarian for an accurate diagnosis.
3. Can cutaneous ulcers in cats heal on their own?
Some smaller ulcers may heal on their own if the underlying cause is addressed. However, it is advisable to have the healing monitored by a veterinarian to ensure that no infection or other complications occur.
4. Are cutaneous ulcers in cats infectious?
The risk of contagion depends on the cause of the ulcer. Ulcers caused by bacterial or viral infections can potentially be infectious to other animals. Ulcers caused by non-infectious causes are generally not infectious.
5. What are the treatment options for cutaneous ulcers in cats?
Treatment depends on the cause of the ulcer. Antibiotics or antifungals are used for infections, while anti-inflammatory medications can help with autoimmune causes. Special wound care and possibly surgical interventions may also be necessary.
6. Can my cat's diet affect cutaneous ulcers?
A balanced diet is important for overall health and can support the healing of cutaneous ulcers. Supplements containing essential fatty acids or antioxidants could promote skin health and accelerate healing.
7. How can I prevent cutaneous ulcers in my cat?
Regular care and hygiene, avoiding stress, parasite control, and a balanced diet can help prevent cutaneous ulcers. For known allergies or health problems, veterinary monitoring should be carried out.
8. How quickly should I take my cat to the vet if I discover an ulcer?
It is advisable to consult a veterinarian as soon as an ulcer is discovered. Early diagnosis and treatment can reduce the risk of complications and infections.
9. Are there home remedies that can help treat cutaneous ulcers?
Some home remedies, such as the application of warm chamomile tea, can provide temporary relief but should not replace veterinary treatment. It is important to discuss all home remedies with a veterinarian to ensure they are safe and effective.
10. What complications can arise from untreated cutaneous ulcers?
Untreated cutaneous ulcers can lead to serious complications, including deeper infections, tissue damage, and systemic diseases. In severe cases, this can severely impair the cat's general health and require lengthy treatment.