The reason why a cat suddenly becomes aggressive may be due to the following reasons:

1. Estrus: When a cat enters estrus, it may suddenly attack your ankles, or run around roaring Go, some will defecate everywhere and suddenly become aggressive;

2. Caused by fear: It may be that cats are timid by nature, and they will become aggressive when frightened and very frightened. Aggression;

3. Caused by pain: The cat may be suffering from some diseases and become aggressive because of pain;

4. Sudden change of environment: Cats are animals that stick to the rules. , when the living environment changes, or a stranger or a new pet appears in the home, the loss of the beloved owner will have an impact on the cat’s mood;

5. Jealousy: Cats have a particularly strong selfishness , its possessiveness is also very strong. If a pet owner hugs a friend's cat or another strange cat in front of the cat, the cat's face will change suddenly, and it may even become more and more fierce;

6. Play: Maybe the cat is not really attacking you, but is playing with you.

Cats have a hunting nature, so when playing with their owners, they will regard the owner’s hands or feet as prey. At this time, the cat does not deliberately want to attack the owner, but wants to follow him. When the owner plays, the owner can use toys to attract the cat's attention so that it will not attack your hand.