The 3 months after the surgery is an important stage to overcome the trauma of the surgery and recover your body, you should take care of the recuperation. 1. Keep your mood relaxed, and do appropriate indoor and outdoor activities, but only to the extent that they do not cause shortness of breath. 2.Prevent colds and diarrhea, and seek medical attention if you feel unwell. 3.Eat freely and increase nutrition. 4.Take all kinds of medications prescribed by the doctor on time, and have blood tests regularly. 5.Follow up in outpatient clinic 2-3 months after discharge.