Why Does My Shiba Have A Patch Of Hair Missing. Endocrine diseases like hypothyroidism, cushing's disease (hyperadrenocorticism) or a sex hormone abnormality from a testicular or adrenal tumor can cause hair loss. In the show ring, a shiba inu’s coat texture is important.

Mange is a hair and skin disorder caused by a mite that results in patchy hair loss, usually starting with the face and ears and spreading to the rest of the body. Cats are known to bite, chew or pull out chunks of hair. While the hair loss on his nose may very well be stress related, only a vet will be able to diagnose and treat it.