The benefits of neutering dogs are as follows: 1. Block the dog’s estrus troubles, stabilize the dog’s mood, and reduce the dog’s loss of appetite. 2. Female dogs can avoid pyometra, and male dogs can avoid reproductive organs. diseases, shorten the dog's lifespan, 3. Make the dog's character become docile and more loving. If you can’t control your dog during heat and you don’t want them to have children, it’s best to have them neutered.