The treatment of moderate mitral regurgitation includes medication and surgery. 1. Drug therapy: commonly used drugs include diuretics, vasodilator drugs, anticoagulants, cardiotonic drugs and so on. (1) Diuretics: such as furosemide, hydrochlorothiazide, spironolactone, etc., used to reduce the burden on the heart and improve the symptoms of edema. (2) Vasodilators: e.g. captopril, metoprolol, etc., used to lower blood pressure. (3) Anticoagulants: e.g., warfarin, etc., used to prevent blood clots. (4) Cardiotonic drugs: for example, digoxin, cediran, etc., used to control heart rate and enhance myocardial contractility. 2. Surgical treatments include mitral valve repair and mitral valve replacement. (1) Mitral valve repair: surgical repair of the mitral valve to make it completely closed. (2) Mitral valve replacement: the mitral valve is replaced with an artificial valve to perform its normal function. If the diagnosis of moderate mitral regurgitation is confirmed, it is recommended to standardize the treatment under the guidance of a doctor.