The cat can be sterilized two weeks after the injection of the triple injection. After the injection, the cat’s body will be weak and its resistance will decrease. The cat cannot be sterilized immediately. It must wait two weeks for the body to return to normal before neutering, and Cats must be at least six months old. Cats under six months of age have not yet matured in their reproductive organs and cannot be sterilized. If the cat is too young, you can wait until 6 to 8 months before sterilizing, and the vaccine has already been administered by this time. After the fight, it will be safer.