Aortic valve insufficiency is defined as disruption of any of the aortic annulus, aortic sinus, aortic valve leaflets, valve junction, and aortic sinus canal junction, resulting in poor closure of the aortic valve leaflets during cardiac diastole. The main factors influencing the late outcome after aortic valve closure insufficiency remain the left heart chamber size and left ventricular function. Long-term survival of patients after aortic valve replacement is also closely related to valve-related complications. The main causes of late mortality are heart failure, myocardial infarction, anticoagulation-related bleeding, and prosthetic valve endocarditis. There are many patients found to have aortic valve closure insufficiency, do not know what circumstances require surgery, what circumstances can be conservative treatment, the following I do a rough introduction, I hope it is useful for patients: 1, aortic valve closure insufficiency in the moderate degree or more (including moderate), the patient has clinical symptoms (such as chest tightness, shortness of breath after activity, dizziness, chest pain, etc.), or with left ventricular insufficiency, or left ventricular enlargement, or Significantly elevated left ventricular end-diastolic pressure, the above conditions suggest that timely aortic valve replacement surgery should be performed. 2.Whether to perform aortic valve replacement in patients with asymptomatic aortic valve closure insufficiency is still controversial, but for patients with reduced left ventricular systolic function, timely surgery is recommended. 3.Patients with severe left ventricular dilatation (left ventricular end-diastolic internal diameter >75 mm, or end-systolic internal diameter >55 mm) require aortic valve replacement even if the cardiac function is normal. 4. For patients with clinically symptomatic advanced left ventricular dysfunction (ejection fraction <25%, or end-systolic internal diameter >60mm), clinical management is more difficult, and the mortality rate of aortic valve replacement in these patients is about 10% or more, and the pros and cons need to be weighed before surgery. It is hoped that patients need timely consultation and treatment after detection of aortic valve closure insufficiency to avoid delaying the disease.