Neutering isn't really a big deal. Dog goes into vet with an empty stomach (usually no food for last 12 hrs.), anesthesia according to weight of dog, and snip (unless the testes are not descended). Anti spaying and neutering people have all sorts of ridiculous reason why not to do this to your dog...no his personality will NOT change, etc. Do it...healthier for them, and you don't contribute to the pet over population problem and you save lives too.