okay, my pup is 6months. and i know that is the time they said he can be neutered. so if he isn't exposed to any females and is always on a leash. what other benefits are there to neutering? will his personality change? i know i am gonna get it done eventually.
While I am no expert, I think that if your male is not neutered and he smells a female in heat, you may have your hands full as he will try anything to get to her. I have owned 4 male dogs, all neutered, and I have never really seen a personality change in any of my male dogs after they were neutered. I don't know if some people see a change or not.
Unless you have nerves (and furniture) of steel get him neutered. Aside from the difficulties of stopping an intact male from marking territory inside your house you will have a howling, crying, furniture-destroying monster on your hands whenever a female dog in the neighborhood is in heat. This will go on 24/7 for about 2 or 3 weeks as your dog goes temporarily insane trying to get out and get to her. Plan on losing sleep. Intact male dogs are more prone to being aggressive and trying to dominate any other dog they encounter. Should a male stray get into your yard expect a nasty fight. They are also more likely to be aggressive with people. They also put a lot more effort into escaping and wandering than a neutered dog. With lots of good, consistent training you might get him to behave in the house and with people but a neutered dog is much easier to live with.
Neutering lowers their testosterone level. This generally tends to "mellow them out" and help them act more like an adult dog sooner. It doesn't change their personality - it just makes puberty and hormones more bareable for you and them. That doesn't mean they don't like to play anymore - it means they listen better.
It CAN help you with potty training. And in some dogs I have seen a noteable difference in marking. My brother neutered his 2 year old male and about 8 months later they are no longer seeing any marking. Neutering young keeps this in check.
It does lower the risk of cancer as well.
Intact males tend to be a bit more hard headed and distracted.
You'll also see less shedding in a neutered male, they tend to mature more quickly, and in long coated breeds they usually have a more profuse, pretty coat.
Those hormones are not necessary and there is no perk to having an intact male other than wanting to show/breed them.
Neuter away. :) And honestly, sooner is better. They tend to bounce back from the surgery more quickly at a younger age as well.