The time when female and male British shorthair cats start to come into heat is not exactly the same. Female cats usually come into heat for the first time early when they are four or five months old, but some cats may come into heat later. The estrus period of male cats is generally later than that of female cats, and they first go into estrus when they are six or seven months old, but there are also a few male cats who go into estrus at four or five months old. Cats usually show symptoms of estrus from March to April or November to December. It takes about a week from the start of heat to the end.

Symptoms of British Shorthair cats in estrus:

1. Symptoms of female cats in estrus:

1. The first signs of estrus are not very obvious. The most common symptom is that the cat's tail is raised, and when the cat's butt is patted, the cat will make various meows.

2. The closeness to the owner suddenly increases sharply. He likes to hang around you, rub against the person's legs repeatedly, will keep looking at you, and has the desire to go out.

3. Likes to roll back and forth on the ground, mentally excited and anxious.

4. Loss of appetite, often "howling" at night.

2. Symptoms of male cats in estrus:

1. Cats have little desire to eat and like to howl.

2. Affected by the secretion of male hormones, they like to spray urine everywhere, and it has a strong smell.

3. Some male cats will squat at the door and scratch the door with their claws.