A small amount of regurgitation of the mitral or tricuspid valve is not necessarily associated with heart valve disease. In clinical practice, this condition is relatively common, and most of it is a physiologic degeneration, but it may also be an early manifestation of valve disease. A small amount of regurgitation of the mitral or tricuspid valve during a color Doppler ultrasound of the heart indicates that during ventricular contraction, part of the blood does not pass through the contraction of the ventricle into the aorta or the pulmonary artery, but rather through the valve closure insufficiency resulting in regurgitation of blood into the atria, and since it is only a small amount of regurgitation, intervention is not required. Clinically, this condition is not due to pathologic cardiac disease, and most patients do not have obvious clinical symptoms and need to be reviewed regularly to avoid early lesion development. However, when moderate or severe regurgitation occurs, it is often pathologically problematic, suggesting that the patient may be suffering from ischemic cardiomyopathy, cardiac valvular disease, hypertension, or cardiac damage, among other things. If mild mitral or tricuspid regurgitation is found in the clinic, consult the cardiovascular department of a regular hospital.