1. When kittens are malnourished, they will shed a lot of fur. Feed them more nutritious foods such as cooked egg yolks, chicken breast, and goat milk powder to supplement their nutrition and improve the shedding.
2. Salt in a kitten's food can also cause hair loss. You should avoid feeding your kitten any salty food. 
3. If a cat has a skin disease, it will also lose hair. You will need to shave the hair in the affected area and apply medication every day.
4. If a cat is in a bad mood, it will affect its endocrine system and also shed a lot of fur. The owner needs to spend more time with it, take it out for walks more often, and help it relax.
5. If you use human shampoo to bathe your cat for a long time, it will irritate its skin and cause excessive hair loss. You need to use mild and non-irritating pet shampoo products to bathe it.