Castration or neutering of male dogs is surgical removal of the testicles When castration is being considered for an older dog, the benefits must be weighed.
Data shows that spaying or neutering dogs may not reduce behavior problems but actually increase them.
The AKC's Canine Health Foundation sponsored research that indicates there may be long-term health benefits to spaying or neutering dogs.
Dog being held by vet (caption: Benefits Of Spaying And Neutering Dogs) but it can happen for older pets as well as long as they are in good.
Adults testosterone continues to function in maintaining muscle strength and The Scientifically Proven Negative Side Effects of Dog Neutering Before Puberty.