There is no direct connection between male cats never going out and sterilization. Whether to neuter or not depends on the owner. Generally speaking, the advantages of neutering male cats outweigh the disadvantages. It can avoid diseases related to the cat's reproductive system and the pain of estrus. If it is not for breeding, it is better to sterilize the cat, which is better for the cat's health and lifespan. If they are not neutered, older cats are prone to reproductive organ diseases, which is not good for the cat’s health.

Benefits of neutering male cats:

1. Avoid many reproductive system diseases, especially some reproductive system tumors in old age. Such as testicular tumors, prostatic hypertrophy, etc.

2. It can prevent male cats from running away, howling all night, and disturbing people. After the cat is neutered, the male hormones will no longer be secreted and there will be no symptoms of estrus.

3. It can prevent male cats from pooping and urinating everywhere.

4. It can avoid urinary system infections, such as urethritis and bladder inflammation.

5. Indirectly improve the survival life of cats. Reducing the incidence of various diseases can indirectly increase the survival life of cats.