Coronary heart disease is a common disease that is increasing year by year in China and has become a serious threat to people’s health and lives. However, there are many treatments for coronary heart disease, such as drug control, interventional therapy and bypass surgery, which are recognized as effective. Coronary artery bypass is a mature technique for treating severe coronary heart disease, and millions of patients internationally undergo the procedure every year, with an overall mortality rate of 1% to 3% internationally, and patients can return to normal activities and physical strength after the procedure. Since the late 1990s, the number of patients receiving bypass surgery in China has gradually increased, and the surgical technique has become increasingly mature. At present, the annual number of surgical cases is more than 10,000, and the mortality rate of elective surgery is less than 3%, and individual units can reach less than 1-2%, which is equal to or lower than the international level. Although stent intervention can solve the problems of many patients, after a certain level of vascular disease, stent intervention cannot solve the patient’s problems, and many patients have complex lesions and can only choose bypass surgery. If your doctor advises you or your family to choose bypass surgery, you have to face it scientifically, you can communicate further with your doctor in charge, learn more about the patient’s condition, understand the necessity of treatment, analyze rationally, don’t just think about the risks and dangers of surgery, and don’t overthink that the surgery will be 100% successful, if it is a routine surgery, the degree of risk is easier to predict, if it is an emergency surgery, it may If it is a routine surgery, the level of risk is easier to predict, but if it is an emergency surgery, it may become much more difficult to predict the risk of surgery. Several studies have shown that the long-term results of bypass for multiple lesions are much better than stenting for the same lesions, and that bypass is better than stenting for patients with diabetes; bypass is preferred for severe vascular lesions. Stenting can also be used for restenosis, as long as there is a “bridge pier” at the distal end that is suitable for bypass.