Ive been smoking marijuana 2-3 times a day for the last 2 months, i am planning on getting breast reduction surgery. i was wondering if i stop smoking a month before surgery would i still need to disclose to my doctor that i smoke?

"Smoking marijuana" may not be detectable if stopped "a month prior to surgery", but it is not a contraindication to breast reduction surgery, and being forthright with your physician is always best, as other concerns about drug usage may alter the timing of the planned surgery.

It is a good idea that you plan to stop using this drug. Do not restart it after your surgery. Marijuana is a psychoactive drug and will mess with your brain. MJ users are called stoners for good reason.