Solutions to cats with rough hair:

1. You can feed lecithin to cats, so that cats can better absorb nutrients and help cats alleviate hair problems.

2. You can comb your cat's hair frequently to avoid frequent tangles of hair.

3. You can add some olive oil to the cat’s food, which can also help the cat’s hair and enhance its intestinal health.

4. It is also very important to bathe the cat regularly. When bathing, you can use a comb to help the cat comb its hair. When blow-drying, you can use cat-specific hair care oil to wipe the cat's hair.

5. Meat is very important for cat hair care. When feeding, you should pay attention to cooking the meat before feeding it to the cat. Meat is a food containing very high protein.