drug testing isn't cheap and it's not medically necessary for that type of surgery, so i wouldn't worry about it.

i have a family member who has smoked right up until the day of surgery and has never had a problem with anesthesia - so i wouldn't worry too much about that either. anytime they put you completely out, you run a number of risks, but i don't think that weed would make them any worse. of course, i'm not a doctor.

by the way, i had that surgery done after i decided not to have any more children. most people have it done immediately after having a child. i'm guessing you're not pregnant? i'm not sure if i'm allowed to share my experiene here or not since it's not technically cannabis related, but you can expect one really bad day almost like you're in labor as your body tries to repair itself, then you're good - or at least not in any pain to mention.

good luck with your surgery.