Clinically, heart disease is one of the most common causes of edema, most often seen in patients with right heart failure, mainly due to the increase in peripheral venous pressure caused by right heart failure. If the edema is caused by right heart failure, it is necessary to actively treat the underlying disease that causes right heart failure, and give diuretic drugs to diuretic, reduce swelling and reduce the load on the heart. Since there are many causes of edema, patients with edema should go to the hospital in time to improve relevant examinations to further clarify the specific causes of edema and to treat different diseases so that the disease can be effectively controlled and the edema can be reduced to improve the clinical symptoms of patients.