Lick-induced Skin Lesions in Dogs

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026
Table of contents

When to visit the vet?

Non-urgent see a veterinarian within 2–3 days

?

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

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

Definition of

Lick-induced skin lesions in dogs are skin injuries caused by the dog’s excessive licking of its own skin. If left untreated, these can lead to skin irritation, infections, and hair loss.

Can Occur with the Following Diseases:

Grundlagen und mögliche Ursachen

Dogs lick themselves for various reasons, including grooming, self-soothing, or due to boredom. However, if licking becomes excessive, it can lead to skin lesions. This behavior is often referred to as a “lick granuloma” when it becomes chronic and leads to skin thickening.

One of the most common causes of excessive licking is itching, which can be caused by allergies, parasites like fleas or mites, or skin infections. Allergies can be triggered by environmental factors such as pollen or dust mites, or by food allergies.

Psychological factors also play a role. Dogs may start licking due to boredom, anxiety, or stress. This behavior can then develop into a compulsive disorder where the dog continuously licks a specific spot until it is injured.

In some cases, pain can also be a cause. If a dog has pain in a specific area, whether due to arthritis, an injury, or another condition, it may try to alleviate this area by licking. Unfortunately, this can intensify the pain, especially if an open wound develops.

Typische Begleitsymptome

  • Skin redness: Often, the first visible change is redness of the skin caused by constant licking. This redness can quickly turn into an open wound.
  • Hair loss: Hair loss can occur in the affected areas, as constant licking damages the hair follicles and inhibits hair growth.
  • Crusts or scabs: As the skin begins to heal, crusts or scabs may form. However, these are often not stable because the dog continues to lick.
  • Infections: Due to constant licking and open wounds, bacteria can easily enter, leading to secondary bacterial infections. These infections can manifest as pus or an unpleasant odor.
  • Behavioral changes: Dogs suffering from lick-induced skin lesions often also show behavioral changes such as restlessness, irritability, or increased withdrawal.

Wann zum Tierarzt?

Eskalation: ORANGE for large, open, weeping, or severely painful lesions, pus/foul odor, fever/apathy, or if the dog cannot be stopped from licking; RED for severe general disturbance.

A veterinary visit is necessary if the skin lesions do not heal within a few days or if they worsen. Pet owners should particularly watch for signs of infections, such as pus, strong odor, or severely swollen areas.

If the dog shows signs of pain, such as whining when the affected area is touched or lameness, a veterinarian should also be consulted. Such symptoms could indicate a deeper underlying problem that needs to be addressed.

If the skin lesions are caused by compulsive behavior, it is also advisable to consult a veterinarian or a behavioral specialist to determine and treat the underlying cause of the behavior.

Symptomerkennung für den Tierhalter und tierärztliches diagnostisches Vorgehen

It is important for pet owners to pay attention to early signs of excessive licking. Regular checks of the dog’s coat and skin can help detect initial signs of redness or hair loss.

A veterinarian will usually conduct a thorough examination of the dog to determine the cause of the skin lesions. This includes inspecting the affected skin areas and a general physical examination of the dog to rule out other health problems.

Skin tests, such as a skin scraping, may be performed to rule out parasites. Allergy tests or blood tests may be ordered to identify possible allergic reactions. In cases where a psychological cause is suspected, the veterinarian may also conduct a behavioral analysis or provide recommendations for a behavioral specialist.

Was kann der Tierhalter tun und professionelle Therapieoptionen

Immediate measures to alleviate symptoms include preventing the dog from further licking the affected area. This can be achieved by applying a special collar, such as an Elizabethan collar or an inflatable collar. These aids prevent the dog from having direct access to the affected area.

It is important to keep the affected skin area clean and dry to minimize the risk of infection. Mild, dog-friendly cleaning products can be used to clean the wound. In some cases, the veterinarian may prescribe antiseptic solutions or ointments.

Alleviating stress or boredom can also be helpful. Additional walks, playtime, or interactive toys can help distract the dog and reduce its need to lick. If emotional or behavioral factors play a role, a veterinary behaviorist should be consulted to develop appropriate behavior modification strategies.

Ausblick auf aktuelle Forschung

Current research on lick-induced skin lesions in dogs focuses on identifying the underlying behavioral and environmental factors. Studies show that stress and anxiety can significantly contribute to the development of these skin lesions. Researchers are investigating how psychological interventions and environmental adjustments can help reduce the frequency of these behaviors. Additionally, the influence of the owner-dog relationship on the dog’s behavior is being studied, with initial results suggesting that a strong bond between dog and owner can reduce the risk of stress-related licking.

Another focus of research is on the biochemical and neurological basis of compulsive licking behavior. Scientists are analyzing the role of neurotransmitters like serotonin and dopamine in the brains of dogs exhibiting excessive licking. Preliminary results suggest that an imbalance of these neurotransmitters could correlate with compulsive behavior. These findings could lead to the development of new pharmacological treatment approaches in the future, specifically targeting the regulation of these neurotransmitters.

The genetic predisposition for compulsive licking is also being intensively investigated. By identifying specific genetic markers associated with this behavior, researchers hope to develop better breeding strategies to minimize the risk of lick-induced skin lesions. In parallel, the role of the immune system is being explored, particularly how inflammatory conditions might affect the skin barrier and increase the risk of lesions.

In clinical practice, innovative technologies such as wearable sensors and image processing systems are being tested to monitor dogs’ licking behavior in everyday life. These systems could enable more precise diagnosis and better management of skin lesions in the future. It is also being investigated how dietary changes can contribute to improving skin health, with a focus on omega-3 and omega-6 fatty acids due to their anti-inflammatory properties.

In summary, research into lick-induced skin lesions in dogs is a multidisciplinary field, ranging from behavioral sciences to genetics, neurology, and nutritional science. Ongoing studies promise to provide new approaches to the prevention and therapy of this widespread problem, with an emphasis on a holistic view that considers both physical and mental aspects.

Häufig gestellte Fragen

  1. Why do dogs constantly lick their skin? Dogs lick their skin for various reasons, including boredom, stress, anxiety, or a physical problem such as allergies or skin irritations. Licking can serve as a calming mechanism or be a reaction to an underlying condition.

  2. How can you tell if licking is problematic? If a dog regularly and compulsively licks the same spot until the skin becomes sore or bald spots form, this is a sign that the licking is problematic and may require veterinary assistance.

  3. What health problems can result from excessive licking? Constant licking can lead to skin lesions that become infected and cause further health problems such as inflammatory conditions and pain. In severe cases, permanent skin damage can occur.

  4. Can licking be a sign of a mental disorder in dogs? Yes, compulsive licking can be a sign of a mental disorder such as obsessive-compulsive disorder or anxiety disorder. In such cases, a veterinarian or a behavior therapist can help.

  5. What role does nutrition play in lick-induced skin lesions? A balanced diet rich in essential fatty acids like omega-3 and omega-6 can promote skin health and reduce the risk of lick-induced skin lesions. Malnutrition or allergies to certain foods can intensify licking behavior.

  6. What steps can I take to reduce my dog’s licking? First, a veterinarian should be consulted to rule out health problems. Behavioral therapy, environmental adjustments, stress reduction, and appropriate engagement can help reduce licking behavior.

  7. Can training help control licking behavior? Yes, targeted training and behavioral therapy can help control licking behavior. Positive reinforcement and the use of distraction techniques can be effective.

  8. When should I see a veterinarian? A veterinarian should be consulted if licking becomes excessive, the skin is damaged, or the behavior changes suddenly. An early diagnosis can help prevent serious health problems.

  9. Can medications help reduce licking behavior? In some cases, medications that affect serotonin or dopamine levels may be helpful. However, these should only be used under veterinary guidance.

  10. Are there preventive measures against lick-induced skin lesions? Regular grooming, a healthy environment, and sufficient mental and physical stimulation can act as prevention. It is also important to avoid potential allergens and ensure a balanced diet.