Surgical sterilization, neutering options for male cats, dogs
                      November 21, 2017
                     
                      Strong support exists for the view that gonadectomy has a net health benefit
for female dogs and cats, but it is less clear that neutering benefits individual males. The risks of some diseases occurring are reduced or eliminated by neutering (for example, testicular neoplasia, benign prostatic hypertrophy), but other disease appear to be more common in neutered males, though risk varies by breed and age at neutering (e.g., cranial cruciate ligament disease, feline interstitial cystitis).