The vet should take a look.
It's hard to tell from the pics, but it looks similar to what happened to my pup. The thread is here somewhere with pics. Scraping, culture, and biopsy were all negative. I decided to do all the testing because it was bothering me. The histopathologist that looked at it did send back a message - something about they wonder about ringworm in cases like Ellie's...but her culture was negative.
Anyway, there are SO many things that can cause hair loss on the nose. So the vet will be your best bet.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |