internal medicine. The branch of medicine that deals with the diagnosis and treatment of diseases affecting the internal organs of the body, especially in adults.
Heart murmurs can generally be divided into two categories: 1  Murmurs that are not due to structural problems in the heart also called innocent murmurs or functional murmurs..  Murmurs which are due to a structural problem of the heart (such as a hole in the heart, a narrowed heart valve or a leaky heart valve). These murmurs require further evaluation and follow-up with a cardiologist.
Heart murmur causes. Most heart murmurs are caused by blood flowing through healthy valves in a healthy heart and do not require treatment. However, heart murmurs can be caused by blood flowing through a damaged or overworked heart valve. Heart valve defects may be present at birth or may result from other diseases, such as rheumatic fever, heart disease, heart attacks or infective endocarditis.