It is unclear why aortic stenosis causes syncope. Medical therapy of aortic aneurysms involves strict blood pressure control. Symptoms related to aortic stenosis depend on the degree of stenosis. The standard for diagnosis of aortic stenosis is non-invasive testing with echocardiography. The most common complication is syphilitic aortitis, which may result in aortic aneurysm formation. Mycotic aneurysms account for 2.6% of aortic aneurysms. Recent data suggests active role of MMPs in the pathogenesis of Aortic Aneurysm. AAAs are the most common form of aortic aneurysm. S2 becomes softer in aortic stenosis. Left ventricle dysfunction determines to an extent the outlook for severity of aortic regurgitation cases. Most people with mild to moderate aortic stenosis do not have symptoms. Heart tissue receives blood from two arteries which arise just above the aortic valve. This sign can be used to differentiate HCM from aortic stenosis. The difference between aortic and right atrial pressure accounts for blood flow in the circulation. The prevalence of aortic regurgitation also increases with age.