Mitral valve replacement is a type of cardiac surgery that provides some relief to a patient’s heart function by replacing the diseased valve. Mitral valve replacement surgery is a surgical procedure to replace the diseased mitral valve, and is mainly applicable to patients with impaired heart function due to mitral stenosis, mitral valve closure insufficiency, and severe heart valve disease. Traditional mitral valve replacement requires open heart replacement. Currently, mitral valve replacement can be performed through small incisions, thoracoscopic surgery or even minimally invasive transcatheter replacement. Mitral valve replacement carries a certain degree of risk, and suitable valves such as mechanical valves and bioprosthetic valves should be selected according to one’s needs. In general, mechanical valves can be used for life. It is recommended that you follow your doctor’s instructions before undergoing mitral valve replacement.