To neuter your male dog is to have his testicles removed. The result of both operations is that your companion will no longer be able to bring more homeless animals into the world. That's pretty important when you consider that more than four million dogs and cats must be humanely destroyed each year because there aren't enough homes for them all. Spaying and neutering are also better for your pet. Spaying eliminates the possibility of uterine or ovarian cancer and greatly reduces the incidence of breast cancer, particularly when your dog is spayed before her first estrous cycle.
Neutering reduces the incidence of prostate cancer and prostate disorders.
Neutered pets are also less likely to bite, run away, or get into fights. To top it all off, dogs who are spayed or neutered not only live longer, healthier lives, but also make better, more affectionate companions. But both procedures offer a lifetime of benefits. When it comes right down to it, if you can't afford to have your dog spayed or neutered, then you can't afford to have a dog. No matter how careful most dog owners are, there's always the chance their companion may become lost.