The tricuspid valve auscultation area is between the 3rd and 4th ribs on the left edge of the sternum. The tricuspid valve is a one-way valve located between the right atrium and the right ventricle, and the blood enters the right ventricle from the right atrium after the tricuspid valve closes to prevent backflow of blood. If the tricuspid valve is not closed, it will cause the blood entering the right ventricle to flow back into the right atrium, which will cause heart enlargement and cardiac insufficiency for a long time. Patients will experience chest tightness, shortness of breath, shortness of breath, edema of both lower limbs, enlarged liver and spleen, which can be life-threatening in serious cases, so once the problem of tricuspid valve occurs, you should go to the hospital in time.