Diseases of the Skin on the Nose in Dogs 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: B