Rheumatic heart disease (RHD) is a serious heart disease that affects one or more of the four small heart valves. Damage to the valve remains after an illness called acute rheumatic fever (ARF). During ARF, the tissue of the heart valve and sometimes other parts of the heart (lining of the heart or muscle) become inflamed and this is called carditis. After carditis, the heart valves can be damaged, followed by scarring, and the result is disruption of normal blood flow through the damaged valves. Some of the blood may flow backward through a leaky valve that does not close properly, or a leaky, scarred valve may not open properly. When the heart is damaged in this way, the heart valve may not function properly and heart surgery may be necessary to repair or replace the damaged valve. Routine antibiotics are prescribed for people with RHD to prevent recurrent ARF and subsequent valve damage. Causes Rheumatic heart disease is caused by rheumatic fever, which affects many connective tissu...