Postoperative precautions for valve replacement mainly include medication care such as warfarin and life management such as rest. 1. Medication care: medication should follow the doctor’s instructions, do not reduce, increase or stop the use of drugs, mechanical valve replacements generally need to take warfarin and other anticoagulant drugs for life, biological valves are generally short-term application; postoperative erythromycin and other anti-infective drugs can be applied appropriately, with redness, swelling and heat and pain should be promptly consult a doctor. 2. Life management: should pay attention to rest, generally need to recuperate for 3 to 6 months, avoid strenuous activities, pay attention to warmth and cleanliness, avoid cold and flu, avoid smoking and drinking, at the same time should pay attention to the presence of other discomforts, and regularly go to the hospital to recheck the coagulation, electrolytes and so on. After the valve replacement operation, you can consult a professional physician for specific advice.