Female cats usually go into estrus once every two weeks, lasting about a week each time. Cats are seasonal animals that go into estrus multiple times, and they go into estrus more frequently in spring and autumn. The signs of a female cat in heat include rolling, howling, and raising its buttocks by tapping the base of the female cat's tail with your hand. The number of times of estrus will vary depending on the breed, environment, physique, and age. It is recommended that cat owners accompany their cats to stabilize them through the estrus period. If there is no need for breeding, it is recommended that the cat be sterilized at the appropriate age.

Characteristics of female cats in estrus:

1. Owners will find that normally aloof cats will become more clingy during estrus and like to be around their owners. Scrubbing around, or lying on the floor twisting around. These are all estrus behaviors.

2. Female cats in estrus often meow. The sounds of cats in estrus will change, some sound like a baby, and some have a very low and hoarse sound.

3. Female cats will urinate frequently and tempt male cats. I want to expand my aura so that more cats of the opposite sex can find it smoothly.

4. The female cat will often raise her buttocks and crawl on the ground with her two legs behind her and the front end of her body, in a posture waiting for mating. If the owner touches the back with his hands, the female cat will become submissive and lower its back.

5. The female cat’s vagina appears swollen. In the early stage of estrus, the female cat's vulva separates and the vulva swells; in the middle and early stage, the outer labia are obviously swollen into two large flaps, accompanied by a small amount of white mucus; in the middle and late stages, the outer labia are strongly swollen and everted, showing obvious four flaps, and the mucus becomes more; in the later stage, The swelling subsided, shrunk and dried, and the pubic hair gradually took on the shape of a brush.