Neuters are very common procedures.

You shouldn't have anything to worry about. But you're right, it is an operation. And with an operation, you can expect a bit of recovery time when he gets home. You will probably want to get an Elizabethan collar BEFORE leaving the vet. I've gone back twice after I've had a pet fixed to get one because they wouldn't leave the incision alone.
I'll be thinking of you and Tiggers tommorrow. Let us know how he does.
