How old is he now? If a female dog goes into heat within 1/2 a mile ofyour house and he smells it, he may become obsessed. I have a friend who's dog lost 12 lbs in a week, becaue he literally refused to eat he was so focused on getting outside and finding this female (he never did, he was neutered soon after).
The big thing neutering does is reduce aggression reaction times, and in general it will reduce the likelihood your dog will do obnoxious behaviors like marking and mounting. Some altered dogs will still do those behaviors, but marking in particular I see far far more of (indoors) in unaltered dogs.
testicular cancer, prostrate cancer are things unaltered dogs can develop as they age if left intact. if he does develop these problems when he is older, the first thing that is done is altering him, at a greater expense then if done now. it is more of a risk to have them go under anesthesia when they are older, plus you will have the added costs of pre-op testing.
This is slightly off your topic but I had a similar situation with a bunch of my guy friends. I found a stray kitten near the beach who was very little. We decided to keep him and he became like everyone's cat. it came time to have him neutered and the guys said how cruel and wrong it is to just cut off what god gave you and throw them away like that. So, I went to michael's (art store) and bought a little wooden plaque and some beige pom-poms. I glued two small pom-poms onto the plaque, and it looked amazingly like a pair of little kitty testicles. When I cam back from the vet, I hung the plaque up and told the guys I had them mounted so we wouldn't waste what god gave the kitty! Funny thing is, they actually believed me for a moment!
my dad didn't like the idea of neutering the stray cat that started hanging around our house, but i told him it had to be done, and it was. tim now lives with us, but since he has been neutered he has become more affectionate towards us, but now we have more strays coming around.
It looks so lame when we identify with our pets as if we were on the same level, but some of us do it all the time. I've got a sister who's had many catsover time, a few had litters, one actually had two, and I think the father of the second litter was a kitten from the first one. Very chaotic and creepy, though somehow she found homes for all, and eventually the replicators were spayed and neutered. I remember, though, her very first cat, an apartment cat that never was spayed. I asked her about it once and she said it would really pi$$ her off if anyone ever did that to her. I think it comes down to that for a lot of people.
When my kids were small and our male Lab was neutered, my son was seven and (I thought) didn't know anything about anything. He demanded to know why this healthy dog was sore and woozy, and what had been done and why. When he'd taken in the nature of the surgery he said, very indignantly, "Well, did you at least have some of his sperm frozen?"
Mommamia if prostate cancer is such a risk in altered dogs, why do altered dogs live 2-3 years longer on average than unaltered dogs? I can find multiple veterinarian-authored articles on how neutering a dog increases the life span of a dog and reduces risk of testicular and prostatitis... I can only find a couple that tout the benefits of leaving your dog intact. Why should we accept the one article you posted over the numerous other veterinary-authored articles that say otherwise?
Here's what the American Veterinary Medicine Association has to say on spaying/neutering
A direct quote "Neutering male dogs and cats reduces the need to breed and can have a calming effect that 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."
***Edited By: Minniyar on 1/4/2007 10:55:34 PM*** Reason: add