Mitral valve regurgitation is a type of congenital heart disease that tends to occur in children, adolescents, or the elderly. Young people can also develop mitral valve regurgitation. To diagnose this condition, an echocardiogram is necessary, as it allows for a more definitive diagnosis. In terms of treatment, symptomatic treatment is often primary, using cardiotonic diuretics to improve the patient's heart function. During this period, it is important to monitor changes in the patient's vital signs, especially heart rate, pulse, and blood pressure. If the heart rate is too fast, efforts should sometimes be made to actively control ventricular force, thereby reducing the load on the heart.