It is best to perform sterilization surgery when the cat is 6-8 months old. If the cat is under 6 months old, it is easy to cause harm to the cat. After the cat reaches sexual maturity, it is necessary to consider sterilizing it. The sooner it is performed, the better for the cat, because the earlier the cat recovers faster, the risk of disease is also lower. However, it should be noted that cats cannot be sterilized during estrus. The surgery should be performed after the estrus period has passed.