Rheumatic heart disease is a part of the pathological reflection caused by group A beta hemolytic streptococcal infection manifesting its pathological changes in the heart parts. Mainly occurs in the heart valve parts pathological process has the following three stages: 1, inflammatory exudative phase: due to streptococcal infection so that the heart valves appear inflammatory reflection valve swelling degeneration then its activity will be affected to a certain extent. 2, proliferative phase: due to long-term valve congestion edema state valve poor circulation valve will be fibrous degeneration necrosis connective tissue proliferation of this connective tissue will become a burden on the valve because it does not have the function of normal cardiomyocytes this period causes valve thickening deformation loss of elasticity. 3, scar formation period: due to collagen fiber and other proliferation, the injury at the mechanization, the formation of scar, thus affecting the heart valve function infection recurrent, the above pathological changes in the valve site, but also the changes are one after another. Overlapping pathologic changes usually occur at one site Clinically common heart valve lesions include: 1, mitral stenosis or insufficiency of closure 2, Aortic stenosis or insufficiency of closure. 3, tricuspid stenosis or insufficiency. 4, joint valve lesions (multiple valve damage), etc. Rheumatic heart disease due to heart valve lesions, so that the heart in the process of transporting blood problems, such as valve stenosis, making the blood flow resistance increased, in order to inhale and shoot enough blood, the heart is more effort to stretch and compression, which makes the heart work more intense, less efficient, easy to fatigue the heart, over time caused by cardiomegaly, such as mitral stenosis to a certain extent due to the left atrial pressure When mitral stenosis reaches a certain level, the pressure in the left atrium increases, resulting in increased pressure in the pulmonary veins and pulmonary capillaries, resulting in pulmonary stasis. Pulmonary stasis may cause the following symptoms: 1. difficulty in breathing. 2. 2. Coughing. 3. Coughing up blood; some may have hoarse voice and difficulty in swallowing. When the heart valve is not closed. The direct consequence of this regurgitation is an increase in pressure in the heart, a decrease in the amount of blood pumped, and a partial loss of gas exchange in the circulation, so that patients with rheumatic heart disease often feel breathless.