Newborn kittens typically don't have fleas; they usually originate from their mothers and are transmitted to the kittens. The primary cause is the kitten's living environment. An unsanitary environment leads to a large flea population, so mother cats need regular external parasite treatments because fleas feed on the cat's blood. A large flea infestation in kittens can cause anemia, weakness, and increased susceptibility to illness. Fleas also carry parasite larvae, which cats ingest while grooming, potentially leading to infection with these parasites or other infectious diseases. Therefore, regular deworming is crucial for cats. 
How to get rid of fleas on kittens:
1. Regularly treat the mother cat for external parasites, even if she doesn't currently have fleas.
2. Pay attention to the hygiene of your home. Regularly clean and disinfect your cat's living environment, and treat the environment for fleas if there are any. In particular, make sure to frequently expose the cat's sleeping area to sunlight, and replace any surfaces that cannot be washed regularly.
3. If the kitten has fleas, you should go to a veterinary hospital to buy special flea medicine to treat the cat. After bathing the cat, put a drop on the skin on the back of the cat's neck, rub the medicine against the direction of the kitten's fur, wrap the kitten's body with a cloth, and the fleas and lice on the cat can be removed in about half an hour. The effect is very good.
4. Even after the fleas have been eliminated, it is important to keep the environment clean, disinfect frequently, and clean regularly to create a clean and comfortable living environment for your cat.
