Active valve disease has developed into a cardiovascular disease with a very high incidence, especially with the development of an aging population and the increase in human life expectancy, this disease has seriously affected people’s lives. So aortic stenosis is one of the better common aortic valve diseases, does it belong to a very serious disease? On the one hand, the incidence of aortic disease is high. On the other hand, aortic valve disease is a progressive disease with a poor prognosis. Aortic stenosis is mainly caused by sequelae of rheumatic fever, congenital structural abnormalities of the aortic valve, or age-related aortic valve calcification. Patients may be asymptomatic during the compensatory phase, and most patients with severe stenosis of the valve have burnout, dyspnea (exertional or paroxysmal), angina, vertigo or syncope, or even sudden death. There are several clinical symptoms at the onset of active valve stenosis: 1. Dyspnea. Exertional dyspnea is often a manifestation of cardiac insufficiency and is often accompanied by fatigue and weakness. With the aggravation of heart failure, nocturnal paroxysmal dyspnea, telangiectatic breathing, and coughing up pink foamy sputum may occur. 2. Vertigo may appear. According to clinical research, about 30% of patients have vertigo or syncope, the duration of which can be as short as 1 minute and as long as half an hour or more. Some patients have cardiac arrhythmia. Vertigo or syncope often occurs after labor or when the body is bent forward, sometimes at rest, during a sudden change in position or when sublingual nitroglycerin is given for angina pectoris. The mechanism is not clear, but it may be related to the following factors: First, the peripheral blood vessels are dilated by labor, and the narrowed aortic opening limits the corresponding increase in cardiac output capacity, resulting in insufficient cerebral blood supply. Second, the occurrence of transient severe arrhythmias, leading to impaired hemodynamics. Third, carotid sinus hypersensitivity. 3, angina pectoris. According to clinical studies, 60% of symptomatic patients, often induced by exercise and relieved after rest. It occurs after exertion and can also occur at rest, indicating that it is not necessarily related to exertion and physical activity. The mechanism may be related to myocardial hypertrophy, increased myocardial oxygen demand and reduced oxygen supply secondary to excessive coronary artery compression and high ventricular wall tension during left ventricular systole. 4, excessive sweating and palpitations. Patients with active valve stenosis sweat particularly profusely. Due to enhanced myocardial contraction and arrhythmia, patients often feel palpitations, and excessive sweating often occurs after palpitations, which may be related to autonomic dysfunction and increased sympathetic tone. 5. Sudden death.