All anesthesia carries risks, even for the smallest procedures. Because of the significant inhibitory effects of anesthetic drugs on the respiratory, circulatory and central nervous systems, especially in patients with special physical conditions, problems can occur even with “minor” anesthesia, especially when professionals do not pay sufficient attention to the accident, which will lead to serious consequences if resuscitation measures are not followed. If the population is different and the condition is different, the incidence of anesthesia risk is also different. If we count according to the size of anesthesia risk, cardiovascular disease is undoubtedly in the front, because anesthetic drugs directly inhibit the circulatory system, the most obvious impact on blood pressure, heartbeat, hemodynamics, all patients with acute and chronic diseases of the circulatory system, are at high risk of anesthesia accidents. Secondly, patients with respiratory system diseases and obese patients also have a high chance of anesthesia accidents because anesthetic drugs have respiratory depressant effects, and obese patients are mostly accompanied by a variety of chronic diseases, organ function is reduced, and the ability to resist anesthesia risks is small. In addition, pediatric and elderly patients, as well as pregnant women, are also prone to anesthesia accidents. In general, if important organs such as brain, heart, lungs, liver and kidneys are not fully compensated, the risk of anesthesia and surgery is high and the perioperative mortality rate is higher.