The treatments for moderate mitral regurgitation are medication and surgery, which should be formulated according to the patient’s condition. 1. Drug treatment: commonly used drugs include diuretics, vasodilators, anticoagulants and cardiotonic drugs. (1) Diuretics: such as furosemide, hydrochlorothiazide, etc., used to reduce the burden on the heart and improve bruising and edema. (2) Vasodilators: e.g. metoprolol, captopril, etc., used to lower blood pressure and reduce the burden on the heart. (3) Anticoagulant drugs: such as warfarin, etc., used to prevent blood clots. (4) Cardiotonic drugs: such as digoxin, cediran, etc., used to control the heart rate. 2. Surgical treatment: commonly used surgical methods include mitral valve repair, mitral valve replacement and transcatheter mitral valve repair. (1) Mitral valve repair: the mitral valve is repaired through surgery. (2) Mitral valve replacement: The mitral valve is replaced by an artificial valve to perform its normal function. (3) Transcatheter mitral valve repair: Repair or replacement of the valve to reduce mitral regurgitation. If moderate mitral regurgitation is diagnosed, it is recommended to seek timely treatment to minimize the adverse effects of the disease.