Diesel was just neutered 2 weeks ago (a little under 9 months old). He had an undescended testicle, and the vet wanted to wait to see if it would drop on it's own before having to do such an invasive surgery. It never did, so he had to have something like a spay instead. with a very long incision line. But it never did seem to bother him. I was able to take the silly cone off of him after 3 days, and he never tried to lick at it or anything.