If the patient has a history of mitral valve insufficiency, especially in moderate cases, it is considered quite severe. The current treatment mainly focuses on symptomatic treatment to improve the patient's cardiopulmonary function. If the patient experiences palpitations, chest tightness, or difficulty breathing, sometimes intravenous therapy is required to alleviate the current condition. Because for congenital heart disease or rheumatic heart disease, the treatment primarily involves strengthening the heart, diuresis, vasodilation, symptomatic treatment, and management. If not treated and managed promptly, the disease could worsen, and the patient may also develop swelling in both lower limbs.