1. Cats lick themselves to stay clean and cool
2. Cats groom themselves to become friends with another cat
3. Cats use their tongues to eat and drink
4. Also, to explore their surroundings
5. Cats lick themselves to relief the stress
1. Medical cause, such as dermatological problems
2. Stress or boredom
3. Pica: excessive licking or biting of non-food materials
4. Obsessive-compulsive disorder