How do you know when my female cat heat she is 1 year already?

There are several signs that may indicate that your female cat is in heat, also known as estrus. Here are some common signs to look for:

1. Increased vocalization: During heat, female cats often become more vocal and may make loud, distinctive calls to attract potential mates.

2. Restlessness and increased activity: Your cat may become restless or agitated and may show increased activity levels. She may pace around, rub against objects, and roll on the ground.

3. Affectionate behavior: A female cat in heat may become more affectionate and seek attention from her owners or other cats. She may rub against you, purr excessively, and show increased friendliness.

4. Frequent urination: During heat, female cats may urinate more frequently and in unusual places, such as on furniture or bedding, to leave scent marks.

5. Raised rump and tail: When approached by a male cat or when stimulated, a female cat in heat may raise her rump and tail, exposing the vulva.

6. Vulvar discharge: You may notice a clear or slightly bloody discharge from the vulva of your cat during heat. This discharge can attract male cats and is a sign of fertility.

7. Receptive to mating: If your cat is in heat and a male cat is present, she may assume a mating posture, crouching with her tail to the side.

It's important to note that the frequency and intensity of these signs can vary between individual cats. Some cats may exhibit subtle signs of heat, while others may display more pronounced behaviors. If you suspect your cat is in heat, it's recommended to consult with your veterinarian for guidance on managing your pet's reproductive cycle and ensuring her well-being.