The reasons why cats love to roll on the ground:
1. Cats rub the ground and spread scent on the ground to mark their territory and let other cats know that it is their territory.
2. When a cat eats catnip, it will become excited and hallucinogenic, which will cause the cat to roll on the ground.
3. In summer, when the temperature is too high and the floor is cold, cats will roll on the ground to dissipate heat.
4. When a cat is in estrus, it will also roll around to vent its emotions. The owner can take the cat to be sterilized.

5. If a cat is very itchy, it will also roll around to relieve the itching. If you find fleas or skin diseases on your cat, seek medical treatment promptly.