Zeke got neutered last thursday, he is six months. The first day was a little tough for him but the vet sent him home with pain meds and he slept all day. And on the second day he was back to normal, we even had to calm him down because he was running around everywhere. He did not have any stitches since it was done by laser and is not as invasive (glue was used to adhere the skin).
Good luck!
