To determine whether a cat has a black chin, you can directly check whether there are black spots on the cat's chin. If there are black spots, it means that the cat has a black chin and needs timely treatment. Black chin is usually caused by folliculitis. You should pay attention to the cat's diet. Do not feed the cat too greasy food. You should also pay attention to the hygiene of the cat's chin. When the cat has finished eating or drinking water, if the chin is dirty, Or there are residues that need to be cleaned up in time.