"Mild to moderate mitral valve regurgitation has been detected, and treatment should be given based on the specific circumstances. If it is simply mild to moderate mitral valve regurgitation without related structural heart disease, it can be temporarily observed without special intervention, and regular follow-up echocardiograms should be scheduled. If mild to moderate mitral valve regurgitation is accompanied by structural heart disease, active treatment of the related heart disease should be pursued to effectively control it. If heart failure occurs, active treatment for heart failure should be initiated to prevent the worsening of mitral valve regurgitation due to aggravated heart failure. Therefore, if mild to moderate mitral valve regurgitation is present, the cause should be further investigated and treated accordingly based on the different causes."