Black dots on cats may be caused by folliculitis or external parasites. You need to check whether there are parasites on the cat. If there are parasites, the cat should be dewormed in time. After deworming for a week, the cat should be dewormed. Bathe the cat and clean up the parasite corpses and feces; if it is caused by folliculitis, you need to improve the cat’s diet and feed it some lighter food, or you can take the cat for sterilization surgery.