It is normal for cats not to spit out hair balls. Cats have barbs on their tongues, and when they clean themselves and lick their fur, they tend to swallow the hairs into their stomachs. If these hairs gather together, they form hairballs. If the owner combs the cat's hair frequently, or feeds the cat hair-free cat food or health care products, then there will be very little hair in the stomach or will not gather to form hair balls, and naturally there will be no hair balls.

Methods for cats to vomit hair balls:

1. Feed cats grass. Cats eating some cat grass can promote the formation and discharge of hair balls, because cat grass has the effect of smoothing the cat's gastrointestinal tract.

2. Edible hair removal cream. Cats can be fed hair removal cream daily, which can effectively prevent the formation of hair balls in cats. Taking it according to the prescribed dosage can promote the rapid elimination of hair balls in the body.

3. Comb your hair every day. You can comb your cat's hair every day and remove the shed hair from the cat's body in a timely manner.

4. Seek medical treatment promptly. When a cat becomes lethargic and refuses to eat or drink, it is necessary to take the cat to the pet hospital for examination and treatment in time.