I am not a great believer in the “I got a low/high pain threshold” statements
i think we are all able to bear some pains easily and some pains extremely poorly. And it depends on individual and pain . I don’t feel much pain with broken bones - been sent out of A &E too many times in recent years with no X-ray as they don’t think I’d broken, only to find weeks later after issues that yep, it was broken. On the other hand I have terrible back pain that makes me cry at times.
I think some of it is about our responsive to the pain psychologically . Women suffer pain menstrual cramps that at other times would need an A and E admission but becuase we know it is “normal” we get on with It (I’m not including endo pain in this statement) . Same as labour pain- there is a positive outcome at end and that adrenaline and knowledge that we are going to be in pain, means we get on with it and accept the pain management tools offered when and if needed. . So mental attitude helps to absorb pain in some cases. If the husband here is experiencing operation for first time and has been scared by scary stories about vasectomy, then pain he feels will probably be less psychologically manageable. Doesn’t mean he’s putting it on- genuinely he’ll feel more pain.
then I think there’s is the whole mechanism of pain receptors. We dont know where someone’s individual nerves are, and inflammation from surgery could well be pushing on a nerve or similar causing him pain. Once inflammation goes down then it will decrease.
if it was me, I’d be saying that he probably has inflammation affecting his nerves or muscles and needs to take pain killers to help with that, NSAID if he’s ok with them. Not wait till he feels pain, but take continuously for next few days until sure inflammation has gone.
the weakness one is bit that doesn’t ring right with me. If he’d had a general anaesthetic then sure, but this was local I assume? I could understand weakness in a particular groin muscle but that wouldn’t need him to down! well only for a few moments if he needs to relax that groin pain. If he’s generally saying he feels weak, then tell him that is not normal and he needs to call the hospital and ask for advice - push him on this and see what happens. Seriously he shouldn’t be feeling “weak“ generally after a local.
the picking up child, don’t make a deal about it. Empathise with pain bit, tell him about inflammation and that he must take NSAID or similar if it is bad enough that he’s complaining about it. And tell him to call clinic back urgently on weakness as you’re really concerned for him at this stage post procedure.