Systolic murmurs beginning after opening of either the aortic or pulmonary valve and due to flow out of the ventricular chambers are called ejection murmurs. Three causes exist for such murmurs: first, the murmur may be innocent, that is, a normal finding; second, the murmur may result from increased flow with no structural or anatomic abnormality within the heart or great vessels. Fever, causing increased cardiac output, exemplifies this; third, the murmur maybe caused an obstruction either within the right or left ventricle, at the pulmonic or aortic valve or in the pulmonary arteries or aorta. Let us listen to and observe the murmur of aortic valve stenosis.