After heart bypass surgery, it is necessary to pay attention to strengthen nutrition, follow the doctor’s instructions to take medication, and wound care. 1. Enhance nutrition: After bypass surgery, you need to pay attention to actively replenish proteins, you can choose soy milk, milk, egg white and other foods to eat, avoid using fat meat, cream, cake food. 2. Follow the doctor’s instructions to take drugs: heart bypass surgery can improve myocardial blood supply, relieve coronary artery stenosis. However, you still need to follow the doctor’s instructions to take anticoagulant drugs to ensure smooth blood vessels, such as aspirin, clopidogrel, etc.; you also need to take simvastatin and other lipid-lowering drugs. 3. Wound care: After the operation, we should closely observe the recovery of the incision, ensure sufficient rest at an early stage, and avoid exerting force on the surgical site as much as possible. If oozing is found in the incision, inform the medical staff in time. After cardiac bypass surgery, you must take active care of yourself, have regular checkups, and seek immediate medical attention if you feel unwell.