My Dog Is Constantly Scratching And Biting Himself

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My dog is constantly scratching and biting himself, leaving me worried and confused. If you’re facing a similar situation, this article will delve into the potential causes, diagnostic tests, and treatment options to help you understand and alleviate your dog’s discomfort.

Excessive scratching and biting in dogs can be a sign of underlying medical conditions, allergies, or behavioral issues. Understanding the root cause is crucial for effective treatment.

Symptoms and Observation

Scratching itching itchy causes walkervillevet

Dogs that are constantly scratching and biting themselves often exhibit a range of signs and symptoms. These may include:


  • Excessive and frequent scratching, often in specific areas such as the ears, paws, or base of the tail
  • Scratching that is intense and persistent, causing visible skin irritation and hair loss
  • Scratching that occurs at all times of the day and night, disrupting the dog’s sleep and daily activities


  • Repeated biting and chewing at the skin, particularly in areas that are itchy or irritated
  • Biting that is accompanied by licking and chewing, creating raw and inflamed skin
  • Biting that results in hair loss, scabs, or open wounds

Other Observations

  • Skin irritation, redness, and inflammation
  • Hair loss or thinning in areas where the dog is scratching or biting
  • Changes in the dog’s mood or energy levels, such as lethargy or irritability

Potential Causes: My Dog Is Constantly Scratching And Biting Himself

Scratching constantly biting alert

Excessive scratching and biting in dogs can be a symptom of underlying medical conditions. Identifying the root cause is crucial for effective treatment.

Various conditions can trigger these behaviors, including allergies, skin infections, parasites, and hormonal imbalances. Understanding the symptoms and characteristics associated with each condition can help narrow down the possible causes.


  • Environmental allergens (e.g., pollen, dust mites) cause itching and inflammation of the skin.
  • Symptoms: Redness, swelling, itching, excessive licking, and scratching.
  • Allergies can be diagnosed through allergy testing or a process of elimination.

Skin Infections

  • Bacterial or fungal infections cause inflammation, itching, and pain.
  • Symptoms: Redness, swelling, discharge, crusting, and hair loss.
  • Skin infections are diagnosed through physical examination, skin scrapings, and cultures.


  • Fleas, ticks, and mites cause irritation and itching.
  • Symptoms: Scratching, biting, hair loss, and skin irritation.
  • Parasites are diagnosed through visual inspection, skin scrapings, and blood tests.

Hormonal Imbalances

  • Hypothyroidism (underactive thyroid gland) can cause dry, itchy skin.
  • Cushing’s disease (overactive adrenal glands) can lead to skin infections and thinning.
  • Hormonal imbalances are diagnosed through blood tests and physical examinations.

Diagnostic Tests

Diagnosing the cause of excessive scratching and biting in dogs involves a combination of physical examinations, diagnostic tests, and a thorough medical history. These tests help veterinarians identify underlying medical conditions, rule out potential causes, and determine the most appropriate treatment plan.

The specific tests recommended will vary depending on the individual dog’s symptoms and the veterinarian’s assessment. Some common diagnostic tests include:

Skin Scrapings and Cytology

  • Skin scrapings involve gently scraping the surface of the skin to collect cells and debris.
  • Cytology is the microscopic examination of these cells to identify the presence of parasites, bacteria, or other abnormalities.
  • This test can help diagnose skin infections, allergies, and certain parasitic infestations.

Blood Tests

  • Blood tests can provide valuable information about the dog’s overall health and immune system function.
  • They can detect underlying conditions such as allergies, infections, or hormonal imbalances that may contribute to excessive scratching and biting.

Allergy Testing

  • Allergy testing involves exposing the dog to a panel of common allergens and observing their reaction.
  • This test can help identify specific allergens that trigger the dog’s allergic reactions and contribute to scratching and biting.

Imaging Tests

  • Imaging tests such as X-rays or ultrasound may be used to rule out underlying medical conditions that may be causing the dog’s discomfort.
  • For example, X-rays can detect bone or joint abnormalities, while ultrasound can visualize internal organs and tissues.

Accurate diagnosis is crucial for selecting the appropriate treatment plan for excessive scratching and biting in dogs. By utilizing a combination of diagnostic tests, veterinarians can determine the underlying cause and recommend the most effective course of action.

Treatment Options

My dog is constantly scratching and biting himself

When your dog is constantly scratching and biting itself, it’s essential to address the underlying medical condition causing the discomfort. Various treatment options are available, each with its benefits and potential side effects. Your veterinarian will work with you to determine the most appropriate approach based on your dog’s specific needs.


  • Antihistamines:These medications block the effects of histamines, which are released by the body in response to an allergic reaction. They can help reduce itching and inflammation.
  • Corticosteroids:These powerful anti-inflammatory medications can be given orally or applied topically to reduce inflammation and itching. However, long-term use can have side effects, such as increased thirst and urination, weight gain, and Cushing’s syndrome.
  • Antibiotics:If a bacterial infection is causing the itching, antibiotics may be prescribed to clear the infection.
  • Anti-fungal medications:If a fungal infection is causing the itching, anti-fungal medications may be prescribed to clear the infection.


  • Allergy testing:This test can help identify the specific allergens that are causing your dog’s allergies. Once the allergens are identified, you can take steps to avoid them.
  • Immunotherapy:This treatment involves gradually exposing your dog to small amounts of the allergen to help it develop immunity. It can be effective for dogs with allergies that cannot be avoided.
  • Hydrotherapy:This therapy involves using water to soothe and relieve itching. It can be done at home or in a veterinary clinic.
  • Acupuncture:This traditional Chinese medicine technique involves inserting thin needles into specific points on the body to relieve pain and inflammation.

Lifestyle Changes, My dog is constantly scratching and biting himself

  • Avoid allergens:If your dog has allergies, it’s essential to identify and avoid the allergens that trigger the itching. This may involve changing your dog’s diet, avoiding certain environments, or using special cleaning products.
  • Keep your dog’s skin clean:Regular bathing can help remove allergens and irritants from your dog’s skin. Use a gentle shampoo designed for dogs with sensitive skin.
  • Moisturize your dog’s skin:If your dog’s skin is dry and itchy, using a moisturizer can help soothe and protect it.
  • Provide a comfortable environment:Make sure your dog has a comfortable bed and a cool, well-ventilated place to rest. Avoid using harsh chemicals or fragrances in your home, as these can irritate your dog’s skin.

It’s important to note that the best treatment option for your dog will depend on the underlying cause of the itching. Your veterinarian will work with you to determine the most appropriate approach and monitor your dog’s progress to ensure the treatment is effective.

Home Care and Prevention

My dog is constantly scratching and biting himself

Caring for a dog that is excessively scratching and biting itself at home requires a comprehensive approach that addresses both the immediate discomfort and the underlying causes. By following these tips and advice, you can help alleviate your dog’s distress and prevent future episodes.

Maintaining a clean and moisturized skin is crucial for reducing irritation and discomfort. Regularly bathe your dog using a gentle, hypoallergenic shampoo and warm water. After bathing, thoroughly rinse and towel dry your dog. Apply a moisturizer specifically designed for dogs to soothe and protect their skin.

Providing a Comfortable Environment

Dogs that are scratching and biting themselves excessively may be experiencing stress or anxiety. Providing a comfortable and stress-free environment can help alleviate these triggers. Ensure your dog has access to a quiet and cozy space where they can rest and feel safe.

Use calming pheromone diffusers or sprays to create a relaxing atmosphere.

Managing Stress Levels

Exercise is an excellent way to manage stress levels in dogs. Regular walks, playtime, and interactive games help release pent-up energy and promote relaxation. Consider providing your dog with puzzle toys or treat-dispensing toys to stimulate their minds and keep them entertained.

Preventing Future Episodes

To prevent future episodes of scratching and biting, it is essential to address the underlying medical condition causing the discomfort. Follow your veterinarian’s treatment plan diligently and make necessary lifestyle adjustments. If allergies are a trigger, identify and avoid potential allergens.

If parasites are the cause, ensure your dog receives regular deworming and flea and tick treatments.