The reasons why cats have black chins:

1. Cats usually use plastic cat bowls for a long time, or do not clean cat bowls every day, or have too many cat bowls. Grease residue causes cats to have black chins.

2. The pet owner does not clean the cat’s chin for a long time, resulting in clogged hair follicles and a black chin.

3. The food and cat food fed by pet owners to cats are too greasy, which can easily lead to black chins.

4. The cat’s oil secretion is too strong. Due to the endocrine disorder caused by the cat’s emotional influence, a more serious black chin is formed.

5. If the cat’s litter box is not cleaned for a long time, it will lead to fungal infection and bacterial infection in the cat, resulting in black chin.