While there are few risks associated with neutering your dog, it is always best to consult with a veterinarian before performing this procedure. Neuteration decreases sexual drive and eliminates some of the physical changes that occur during puberty in dogs. However, these effects are only temporary and will go away as your dog grows older. There may also be a slight decrease in activity levels and other behavioral changes that might affect your dog's temperament. Some breeds are more prone to these changes than others, but all dogs should be monitored closely after neutering to ensure they don't have any adverse reactions.