Tricuspid Insufficiency is a heart condition where the tricuspid valve does not close properly, allowing blood to flow backward from the right ventricle into the right atrium. This can lead to symptoms such as fatigue, swelling in the legs, and shortness of breath, especially during physical activity. The condition can be caused by various factors, including heart disease, pulmonary hypertension, or damage from rheumatic fever. Diagnosis typically involves imaging tests like echocardiograms, and treatment may include medications or, in severe cases, surgery to repair or replace the valve.