Neutering injections for female cats can prevent cats from going into heat and eliminate the need for sterilization surgery. However, long-term sterilization will cause certain harm to the cat's body. It is generally not recommended. It is safer to have sterilization surgery. If the cat is not sterilized, it will easily lead to pyometra. Try to neuter or breed the cat. When the female cat is in estrus, you can use toys or snacks to distract the cat and reduce the symptoms of estrus.