The first thing to do is to find out the cause of edema. The causes of edema are hepatitis edema, cardiogenic edema, nephrogenic edema, malnutrition edema, and mucous edema. If it is hepatitis edema, the main thing is to actively treat liver disease, hepatitis cirrhosis. Cardiogenic edema is mainly caused by heart failure, mainly given diuretic, decongestive, anti-heart failure, close and active treatment of the primary disease; nephrogenic edema is mainly seen in a variety of nephritis nephropathy, if there is a renal biopsy indications for renal biopsy can be carried out to clarify the type of pathology, to determine the prognosis, to guide the treatment, and according to the type of pathology of the selection of hormone and immunosuppressant treatment and control of blood pressure, to reduce proteinuria, and protection of renal function; mucus edema. For mucous edema, which is mainly seen in hypothyroidism, supplemental thyroxine is mainly given to improve the symptoms.