Hello! Thank you for your question! The issue with nicotine is that it also acts as a vasoconstrictor, clamping down of blood vessels. Blood supply is always of great concern during any surgical procedure, but especially in such a procedure as a breast augmentation where the viability of the skin/tissue, and nipple-areolar complex is obviously important. Since the vascularity to the area is already tenuous since it will be raised by cutting around the area, maximizing blood flow to the tissue is critical. Typically, we recommend at least 6 weeks of smoking cessation prior to and at least 6 weeks after any surgical procedure. The longer, the better. Nicotine always increases the risk for infection, nipple necrosis, poor scarring, and wound complications, as well as other health consequences including blood clots. The anesthesia risk is greater with general anesthesia as well as pulmonary issues/lung infections postoperatively. I would discuss this with your surgeon prior to your procedure. Hope that this helps! Best wishes!