If you see the black specks, rub them with a damp, white cloth. If tiny red specks appear on the white cloth, then this is a sure sign that you have a flea problem.
[header] How to deal with persistent feline flea problems [title] Look for flea dirt. [step] Flea dirt resembles small specks of ground black pepper. Look for these specks along your carpet and floor, especially in the areas where your cat rests.