Many patients have many doubts about surgical bypass surgery for coronary artery disease. In fact, internal stenting has its limitations and is not suitable for all patients, and many patients with coronary artery disease make the wrong choice because they are afraid of surgical treatment. In addition to conservative drug therapy for coronary artery disease, what should be the choice between medical stenting (PCI) or surgical bypass therapy (CABG), as recently published in? US guidelines for the treatment of unstable angina and non-ST-segment elevation myocardial infarction? provides decision recommendations on whether to perform medical stenting (PCI) or surgical bypass therapy (CABG) for patients with UA (unstable angina)/NSTEMI (non-ST-segment elevation myocardial infarction): 1. Bypass surgery should be performed for left main stem lesions. 2, Single or 2-vessel lesions can be treated with: drugs, stents and bypass. 3, Three lesions or 2 lesions combined with proximal anterior descending branch lesions, if the patient is combined with left heart insufficiency (EF’s are more indications for bypass surgery. Therefore, the majority of patients should not make the wrong choice for blind fear of surgery and delay the best time for surgery. Of course, all surgeries have risks, but currently, bypass surgery is a very routine procedure.