Why is my dog's nose discolored? Could it be demodectic mange?

Question

Is this demodetic mange? Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 2 years and 6 months old | 55 lbs

Andrea M. Brodie, DVM · Accepted Answer

This does not look like typical demodectic mange. Typical would be skin lesions and loss of hair around the eyes and other parts of the body. Demeodectic and other manges can be diagnosed with a skin scrape. What I am seeing on your photos is depigmentation of the philtrum/nose and skin around the mouth. This could be a sign of bacterial infection, or an autoimmune disease, or possibly a fungal infection. This cannot be diagnosed via a photo, so you will need to take your dog to your veterinarian for an exam.

Why is my dog's nose discolored? Could it be demodectic mange?

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