Getting cosmetic surgery requires you to stop smoking for at least two weeks before and after your procedure; this is because smoking increases bleeding time, which is not good for the procedure. Smoking also delays healing, which is not good for the recovery period. Smoking can starve your tissues of oxygen and can further increase your risk of other surgical complications such as;
Infections
Tissue necrosis
Increased pain
Thick, wide scars
Serious conditions include thrombosis, pulmonary embolism, stroke, blood clots, pneumonia, etc.