Aww that is great he is being neutered! Is that the cat I take it? How old is he? Cats can be neutered as soon as they are 2lbs. so you know for future reference. If your vet said to wait until 6 months or something, find a new vet! Cats should not wait like dogs
That is good he is being snipped though! Now he will lead a healthier, happier, not so stinky life
Males recover so quickley too, almost right away.