Mitral regurgitation is less often caused by incomplete closure of the heart valves. This may be normal, or it may be due to pulmonary hypertension, cardiomyopathy, or degenerative valve function. 1. Normal: Both the elderly and the young may experience a small amount of regurgitation of the apical valve. This is mainly due to a small gap in the closed heart valves, which causes a small amount of blood to regurgitate. If there are no other symptoms, treatment is usually not needed. 2. Pulmonary hypertension: When the arteries in the lungs are in a state of high pressure, resulting in incomplete closure of the pulmonary valves, blood may regurgitate into the right ventricle. For this condition, drugs such as Epoprostenol and Amlisentan are used for treatment under the guidance of a doctor. 3. Cardiomyopathy: Under the influence of many causes, the contraction and diastolic function of the heart muscle is abnormal, which in turn affects the function of the apical valve and shows a small amount of regurgitation. In the face of this problem, drugs such as digoxin, hydrochlorothiazide and bisoprolol should be taken orally to relieve the disease. 4. Degeneration of valve function: The function of heart valves will decline with age and show a small amount of regurgitation. Generally, metoprolol and digoxin can be used to enhance myocardial function and increase the effect of pumping volume. Do not panic too much after a small amount of apical valve regurgitation occurs. If there is no uncomfortable reaction from the body, you may not need treatment for a while. However, if the symptoms persist for a long time, you should consult a doctor as soon as possible, do not self-medicate.