The systolic murmur of the heart is a common type of murmur in clinical practice and can be divided into two types, including functional murmurs and organic murmurs, which are common in the following diseases: 1. Apical functional systolic murmurs, which are common in fever, anemia, hyperthyroidism, pregnancy, strenuous exercise, and may also be heard in some healthy people under quiet conditions. 2. Apical organic systolic murmurs, which are more Functional is more common, mainly in patients with rheumatic heart valve disease with mitral valve closure insufficiency, mitral valve prolapse, and papillary muscle dysfunction. The aortic valve region is mainly organic and is seen in diseases due to aortic stenosis. The pulmonary valve region is organically rare and is seen in congenital pulmonary stenosis.3. Ventricular septal defect, between the third and fourth ribs at the left edge of the sternum, can also be heard as a rough and loud systolic murmur that can be conducted to other parts of the precordial region with tremor.