Physiologic regurgitation is a mild form of regurgitation caused by insufficient closure of the mitral and tricuspid valves, and generally does not require special treatment. Many people undergo ultrasound examination of the heart, the ultrasound report of the heart will describe the mitral valve, tricuspid valve mild regurgitation. In the human heart and large blood vessels, there will be valves to maintain a one-way flow of blood, but with the passage of time, the function of the valves will gradually reduce, thus causing regurgitation, as a normal physiological phenomenon. In many pathological conditions, such as atrial and ventricular enlargement, valvular lesions, rheumatic heart disease, infective endocarditis, tendon cable rupture, etc. can lead to regurgitation, so in the case of regurgitation, timely consultation with a professional doctor to rule out the regurgitation caused by pathologic conditions, if there is no, most of them are considered to be physiological regurgitation. Most of the mitral valve, tricuspid valve mild regurgitation is physiological regurgitation, but also to specific analysis, to exclude pathological conditions.