The reasons why kittens keep licking themselves:

1. Cats love to be clean. They often lick their own hair, probably to clean it.
2. If the cat is injured, it will keep licking its own wounds. The owner needs to disinfect its wounds with iodophor and wear an Elizabethan ring to avoid inflammation of the wound caused by licking the wound.

3. When a cat feels very cold, it will lick its fur to make it fluffy and keep warm. The owner should take measures to keep the cat warm.
4. When a cat feels restless, it will lick itself to relieve stress and adjust its mood.

5. When the weather is hot in summer, cats will lick their own hair to dissipate heat.