Heart valve disease is a single or multiple valve lesion of the mitral, tricuspid, aortic and pulmonary valves due to rheumatic fever, mucus degeneration, degenerative changes, congenital malformations, ischemic necrosis, infection or trauma, which affects the movement of blood flow, thus causing abnormal heart function and eventually heart failure. Treatment includes conservative medical, interventional and surgical procedures. Valve replacement is one of the more common surgical procedures, which is to replace the diseased valve with a well-functioning valve (there are biological and mechanical valves), in order to your quality of life and your replacement valve can work better and longer, please note the following points: 1, you need to take anticoagulants every day after surgery (mechanical valves need to be taken for life), anticoagulants can make your blood become The anticoagulant can make your blood “thinner” and prevent the formation of small blood clots on top of or around the new valve; please take this medication on a regular basis, and you will need to have regular blood tests to adjust the dose of this medication during the time you are taking it. 2.When you are preparing for tooth extraction or other surgical treatment, please inform your doctor that you have had valve surgery, and your doctor will let you use antibiotics to prevent infection before or after the surgery. 3.During the period of taking anticoagulants, if you have hematuria, nosebleeds, subcutaneous overflow, bleeding gums, occult blood in the stool, more usual menstruation in female patients, etc., the general anticoagulants should be reduced or stopped, and you can ask your doctor. 4, pay attention to the prevention of upper respiratory tract infection. 5.Limit the intake of saturated fat and oil. Diet should be light, low fat, low cholesterol, low salt, high vitamin, high fiber, high protein, can eat skinless chicken, lean meat, fish, skim milk, vegetables, fruits, etc. 6.After discharge from the hospital, you can rest for six months, avoid excessive activity and strain, and can gradually increase the amount of activity. The exercises that can be done are: walking, swimming, cycling, Tai Chi and other aerobic exercises. 7.Take cardiac diuretics as prescribed by the doctor, and pay attention to whether you have fluid retention (weight gain, body swelling, chest tightness, etc.) 8.Please keep a cheerful mood, reduce worries and avoid emotional excitement. 9.Living should be regular after discharge, keep enough sleep. 10.Keep your bowels open, do not force to defecate, so as not to increase the burden on your heart. 11, Regular review, if there is any discomfort such as sudden weight gain, swelling of the body, or unusual shortness of breath, please inform the doctor for timely treatment.