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Diseases of the Skin on the Nose in Dogs

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Nasal Dermatoses in Dogs

 

Many diseases affect the skin on the noses of dogs. This includes bacterial or fungal infections of the skin, or mites. These diseases may affect the bridge of the nose where there is hair, or the smooth part of the nose, where there is no hair. Often, it is the portion of the nose that has hair that is affected. In the case of systemic diseases like lupus or other autoimmune ailments, the whole muzzle is involved. Some systemic diseases cause the part of the nose where there is no hair to lose its pigment or develop ulcers.

 

A rare condition caused by the sun, called solar dermatitis, also affects the areas of the nose not covered by hair. That area may become inflamed and even ulcerated. Most of these conditions are more likely to occur in puppies under a year of age, but skin cancers are more likely to occur in older dogs.

 

Symptoms and Types 

 

There are many different symptoms that may be seen in dogs affected by nasal dermatoses, among them:

 

  • Ulcers/nodules on skin
  • Loss of hair (alopecia)
  • Eruptions that have pus
  • Loss of pigment
  • Excess of pigment
  • Redness of skin
  • Crusts
  • Scarring

 

Breed-specific skin diseases of the nose:

 

  

Causes

 

Some factors or diseases that may causes nasal dermatoses include:

 

  • Nasal lesions with pus
  • Mites
  • Fungus
  • Nasal solar dermatitis
  • Immune-system disorders
  • Connective-tissue disorders
  • Zinc-responsive scaling and crusting of skin
  • Sensitivity to certain substances, including certain drugs
  • Cancer
  • Trauma

 

Diagnosis

  

Your veterinarian will take samples of skin to culture for bacteria and fungi. Biopsies and immune system tests will also be conducted.

 

 

 

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