Mitral regurgitation is commonly associated with mitral valve insufficiency due to various cardiac or non-cardiac diseases. The treatment of mitral valve insufficiency can be divided into medical and surgical treatment. First, medical treatment: the main treatment for mild mitral regurgitation is medical treatment, which aims to reduce regurgitation, lower pulmonary venous pressure, and increase cardiac output, and can take arterial dilators to reduce resistance to the body circulation, reduce regurgitation, and reduce left atrial pressure, thereby increasing left ventricular cardiac output. In addition, anti-infection treatment is also needed to prevent the occurrence of wind heart disease and infective endocarditis. Second, surgical treatment: If the symptoms are not relieved after medical treatment or the effect is not good, mitral valve repair or mitral valve replacement can be performed under general anesthesia after excluding contraindications to surgery.