Just seeing this now.
It looks a little inflamed to me. If it isn't better, why don't you call your vet and ask for an email address. Then email the photo and ask them to show it to the vet who did the neutering.
It looks a little inflamed to me. If it isn't better, why don't you call your vet and ask for an email address. Then email the photo and ask them to show it to the vet who did the neutering.