There are small black spots on the cat's fur.
These small black dots could be skin byproducts or foreign substances. There are several possibilities:
1. Fleas: Fleas are common parasites that attach themselves to a cat's fur, sucking blood and laying eggs. These small black dots may be flea feces. 
2. Lice: Lice are also common parasites. They attach themselves to a cat's fur and reproduce by biting the host's blood. The small black dots may be lice feces.
3. Blood-sucking lice: Blood-sucking lice are parasites that survive by stealing the blood of their hosts. These small black dots may be blood-sucking lice or their feces.
4. Sebaceous cysts: Sebaceous cysts are cysts under the skin that are filled with sebum. These cysts may form small black spots on a cat's skin.
5. Dandruff: Skin problems in cats (such as dandruff) can cause small black spots to appear on their bodies.
