Q. My 11 year Chihuahua has a brown spot with white around it on her belly. My mom just found it. What could it be?
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. If the skin is otherwise normal - not raised, not reddened, no discharge, not itchy - then it could very likely just be normal pigmentation. The pigmentation pattern on a dog's skin can change as they age. If this lesion is raised, however, I would definitely get it checked out by your vet. If you'd like for us to look at a picture of it, please request a consult and we can probably give you more information.