Neutering a male pet involves is the removal of the testicles. This procedure prevents instances of testicular and prostate cancers in your pet.
Neutering is unlikely to change the overall behaviour of the male pet. It does reduce likeliness to spray urine on vertical surfaces around your home and property. There is less frequency of fights in neutered cats then non-neutered cats.
The neutering procedure also slows your pet’s metabolism, you should monitor and regulate food consumption of your pet during the recovery period after surgery.