I smoke marijuana with tobacco on a daily basis through a bong. The surgery package with details told me not to smoke 1 day before and 2-3 days after. What are the consequences if I do not follow this? The doctor or nurses never told me how long to hold off after and they knew that I smoked marijuana every day. Also there were no problems with the surgery and I smoked marijuana the day before surgery. I am 19 years old.