It is not too late to sterilize a female cat at the age of 3. As long as the cat is healthy and does not suffer from uterine diseases, it can be sterilized. Before sterilization, a preoperative examination is required to confirm whether the cat has allergic reactions, etc. to avoid accidents. , affecting cats. If a female cat does not mate during the estrus period, she will go into estrus more and more frequently, which may cause the cat to suffer from pyometra. Therefore, if you do not plan to let the cat have children, it is best to have it neutered this morning, which will make the cat healthier. It can also extend the life of your cat.