The reasons why cats lick their owners’ hands are as follows:

1. Cats are clingy and express their love and trust in their owners by licking their hands.

2. After the cat becomes familiar with the environment, it feels safe and relaxed, and expresses its comfort and enjoyment by licking the owner's hand.

3. The smell of the cat’s favorite food remains on the owner’s hands.

4. The cat feels uncomfortable in its mouth and seeks help from its owner by licking its owner’s hand.

5. The cat may be suffering from hyperthyroidism.

6. Cats may lack certain trace elements.

7. It may be that the cat wants to attract the owner's attention, wants the owner to play with it, or wants the owner to give it food.

8. Cats smell something they don’t like on their owners and clean them by licking them.

9. Cats regard their owners as the same kind and interact with them through licking.

10. The cat may be feeling unwell or sick, and will tell its owner by licking.

11. Cats obtain information about their owners’ contact with the external environment by licking their owners.

12. The cat may want to drink water or eat.

13. Cats are very possessive and leave scent on their owners’ hands by licking them.

When a cat licks its owner’s hand, the owner should pay attention to:

1. The owner can gently stroke the cat’s head to respond to the cat’s love and trust in the owner. Improve your bond with your cat.

2. The owner gently opens the cat’s mouth and observes whether there are any abnormalities in its oral cavity.

3. The owner should wash his hands before letting the cat lick them to prevent the cat from licking bacteria into the body.

4. The owner should feed the cat some food containing trace elements.

5. The owner plays with the cats and gives them food.

6. If the cat’s mental state is not good, the owner should take it to the hospital.

7. Owners should always observe whether the cat’s food bowl or water bowl is empty, and replenish it with food and water in a timely manner.