A small amount of mitral and tricuspid regurgitation refers to a slight incomplete closure of the mitral and tricuspid valves. Because heart valve function degenerates with age, a small amount of regurgitation does not affect the circulation of the heart, so there is no special discomfort and no need for special treatment. However, if the patient has other heart diseases in combination, such as dilated cardiomyopathy, rheumatic valve disease, the valve lesion may be further aggravated and requires active treatment of the primary disease and regular attention to the valve condition.