Benefits to neutering your male pet
At maturity (usually around, 6-9 months of age), male dogs and cats are capable of breeding. Both male dogs and cats are likely to begin "marking" their territories by spraying strong-smelling urine on your furniture, curtains, and in virtually every part of your house. Also, given the slightest chance, males may attempt to escape from home in search of a mate. Dogs seeking a female in heat can become aggressive and may injure themselves and people by engaging in fights.
Neutering male dogs and cats reduces the need to breed and can have a calming effect which makes them less inclined to roam and more content to stay at home. Neutering your male pet also improves his health by reducing the risk of prostate disease, testicular cancer and infections.