You can’t smoke before gallstone surgery, it is easy to induce infection, poor wound healing, coughing and so on. 1. Induce infection: smoking will lead to increased airway secretion, anesthesia will affect the respiratory airway secretion will cause respiratory tract infection or even pneumonia, serious cases will even endanger the patient’s life. 2. Poor wound healing: the alkali substances in smoke will stimulate capillary contraction, affecting the blood supply to the surgical site, which is not conducive to postoperative healing, and in severe cases, may even cause bacterial infection. 3. Cough: it is easy to cause coughing, coughing will lead to increased pressure in the abdomen, gallstone surgery incision in the abdomen, is likely to cause cracking or delayed healing. It is recommended that you follow the doctor’s instructions to ban smoking before surgery to avoid adverse effects.