The reasons why cats always bite plastic bags:

1. Instinct

Animal’s instinct is to want to taste unfamiliar things first. Try it and see if it's edible. Under normal circumstances, once a cat understands that this food is inedible, he will not chew it a second time. Some cats may get too excited and unable to control their instincts, and may chew plastic bags while playing.

2. Special hobbies

Some cats naturally like the smell of plastic bags. It is also possible that the plastic bags once contained food, which made the cat mistakenly think that it is food and chew it. .

3. Pica

If a cat lacks certain trace elements or is infected with parasites outside, it may develop pica and chew plastic bags. Cats with pica will actually chew and swallow plastic bags as if they were food, which is essentially different from the previous playful attempts.

4. Stereotypic behaviors caused by stress

If a cat is very stressed, it may develop stereotyped behaviors due to emotional stress. There are many kinds of stereotyped behaviors. Some cats lick their fur constantly. Some will circle around their tails, some will suddenly increase their appetite to several times the normal amount, and some will chew on things that can grind their teeth but cannot be eaten, such as plastic bags.

Solutions for cats with pica:

1. Isolate and put away all things that can be chewed. To prevent kittens from chewing items.

2. It is necessary to divert the cat’s attention from pica, and allow the cat to play with other toys such as scratching posts, or feed snacks.

3. The owner should spend more time with the kitten. You can take it for a walk outdoors or play with other kittens.

4. Pay attention to nutritional balance in food matching, and appropriately supplement some trace elements. Owners can usually make some nutritious meals for cats, such as cooking some fish soup, cooked egg yolks mixed with minced meat, and chicken breasts mixed with vegetables. Feed the cat some mud or the like.