Of course he can refuse catheterization. He can certainly set that as a
stipulation. Of course, his surgeon can refuse to do the operation too if
he/she thinks that a full or partially full bladder without the ability to
empty it would pose a risk.

Anyway, a foley catheter for an open inguinal hernia repair under local
anesthesia with or without sedation would certainly be an unusual and
unnecessary step. Likewise, it would be unusual even if done the operation
was done under general anesthesia. Spinal anesthesia is a different
situation, though, in that it might make him unable to void for a few hours
after surgery. They could do the operation without it, but he might have to
have the catheter if he can't void afterward.

Now, if his inguinal hernia operation is being done laparoscopically, that's
different. In that case, a foley catheter is required in order to do the
operation.

HMc

Of course. In fact, your brother can refuse the entire operation as
well. He can even refuse to see any doctor for anything if he wants
to.

I have a fantastic, almost revolutionary, dare I say, idea: Why
doesn't your brother ask his surgeon these questions?

Sarcastically yours,

PF