When patients with coronary heart disease have undergone coronary artery bypass graft surgery and are ready to be discharged from the hospital, healthcare professionals will often list a long list of precautions to be taken after discharge. This is because coronary heart disease is caused by atherosclerosis, which is a gradually developing systemic disease. Surgery can only remove localized disease, but cannot curb the development of systemic atherosclerosis, so it is necessary to do a good job of reasonable postoperative conditioning. Xu Huashan, Cardiovascular Surgery Department, First Affiliated Hospital of Zhengzhou University Control blood pressure, blood sugar and blood lipid. Anyone who has undergone coronary artery bypass graft surgery should quit smoking and limit alcohol, keep blood pressure below 130/80mmHg, and control weight moderately. Diabetic patients should control fasting blood glucose at about 6mmol/L, two-hour postprandial blood glucose should be controlled at 8mmol/L or less, and glycated hemoglobin is less than 7%. Lipids should also be controlled, total cholesterol should be lower than 4.68mmol/L, LDL should be lower than 2.60mmol/L, triglycerides should be lower than 1.70mmol/L, and HDL should be higher than 1.0mmol/L. Gradual progression, appropriate activities. Patients should participate in outdoor activities appropriately after surgery. Postoperative week 1: Walking should be done twice a day for 5 minutes each time. Postoperative week 2: Walk twice a day for 10 minutes each time. Postoperative week 3: Walk twice a day for 20 minutes each time. Postoperative week 4: Gradually increase to 30 minutes per walk. This will gradually improve blood circulation and strengthen muscles and bones. If discomfort such as chest pain, shortness of breath, asthma and fatigue occurs during a walk, the activity should be stopped immediately. Adhere to the medication. After surgery, patients should insist on taking oral aspirin and other anticoagulants that prevent platelet aggregation, as well as betalactams and other drugs that improve the diastolic function of the heart. Regular review. Post-operative patients must undergo regular cardiology outpatient checkups, and should seek prompt medical attention if they have symptoms such as chest tightness or chest pain.