Tips so far....keep patient on a soft towel or vetbed so that sharp bits dont stick to his sore bits and also it makes it easier to spot if he is pooping ok.
Keep him away from other piggies for a few days so he can concentrate on healing and not be accidentally injured by another piggy or accidentally injure himself.
He can still make baby piggies for about 5 weeks from today, so no lady friend visitors.
I can bathe his bits with cooled boiled water if they look dirty, otherwise best to leave alone. If I am concerned about his behaviour in anyway, lack of poop or not eating he is to go back to vets.