With the increase in the demand for quality of life, with the increase in the demand for comfort, and with the increased involvement of anesthesiologists in the perioperative management, especially in the prognosis, the adverse effects of nausea and vomiting in post-surgical patients are receiving more and more attention, and anesthesiologists are playing an important role in it. The high incidence of nausea and vomiting depends on three aspects: 1. Patients: women, non-smokers, sports history, people who are prone to nausea and vomiting, etc. 2. Anesthesia planning. Depending on the incidence of the evaluation, preventive medication will be used. As a patient, the most important thing is to tell your anesthesiologist the truth about your physical condition.