The Demodex mite lives at low levels in most dogs, not usually causing a problem. However, in young or immunocompromised animals those mites can multiply causing hair loss. The Sarcoptes mite is ...

Dogs that weigh 26-100 pounds will receive 3 ... If your dog experiences seasonal alopecia or hair loss, melatonin can help. A dog can experience hair loss on the back and flanks.