what causes dogs skin to turn black
Symptoms of Black Skin Disease in Dogs. Symptoms of Black Skin Disease. âBlack skin diseaseâ is a phrase used to refer to a form of hair loss (alopecia) in dogs that seems to be caused or at least influenced by hormonal imbalances. The term more commonly used by veterinarians and breeders for this condition is Alopecia X. Affected dogs typically have normal hair coats as puppies.