Patients with aortic regurgitation will not be dizzy when the condition is mild, but if the regurgitant flow is relatively large, it will cause insufficient cerebral blood supply, which will lead to the symptoms of dizziness. 1. Chronic aortic regurgitation can last for a long time without obvious clinical symptoms, and patients with mild disease can usually maintain it for more than 20 years. 2. With the aggravation of the disease, the flow of regurgitation gradually increases, and symptoms such as palpitations, dizziness, discomfort in the precordial area and other symptoms related to the increase in heart beat volume will appear. 3. Aortic regurgitation has many etiologic factors. Acute aortic regurgitation can be caused by infectious diseases and acute myocardial infarction. Most patients have chronic aortic regurgitation. Common causes include rheumatic heart disease, congenital anomalies, and degenerative aortic valve disease. It is recommended that patients seek timely medical treatment and standardize treatment under the guidance of doctors.