The time to neuter cats is generally after they reach sexual maturity. Female cats are later, after 10 months of age, while male cats are 6-8 months old. But to be precise, , if you want the cat to have less physical damage after sterilization, it is best to wait until the cat is mature, that is, after it is 1 year old, before neutering. However, it cannot be generalized, because some cats develop late, so their first estrus must be used as the standard, and they need to be sterilized within about one month after estrus.