While skin color changes may occur in some dog breeds as a result of aging or seasonal changes, skin depigmentation could also be an important symptom of an underlying medical problem. Bacterial and fungal infections, certain hormonal disorders, and even some types of cancer can possibly lead to skin depigmentation.
Discoid lupus erythematosus has been identified as one of the important causes of nasal planum depigmentation in dogs. Also, it is the second most common form of immune-mediated disease in dogs. The nasal planum is that hard hairless spot at the tip of a dog’s nose. In addition to the change in skin color, advanced cases may have swelling and skin ulcer formation that can be aggravated when the skin is exposed to sunlight or other sources of UV light.
To protect your Pets Health from potential complications, it is a good idea to have your dog examined by your vet immediately so the problem can be addressed.