Body edema can be given diuretic methods, the most common causes are cardiac insufficiency or renal insufficiency, body circulation stasis will lead to lower limb edema, patients with renal insufficiency will show puffy eyelids, and gradually body edema will appear. Some patients are due to malignant tumors, with the development of the disease, the continuous consumption of the tumor, there will be anemia and hypoproteinemia, which will also lead to a decrease in plasma colloid osmotic pressure, tissue fluid exudation, the patient will show edema, and even there will be fluid in the body cavity, the patient will show abdominal distension, chest tightness, or respiratory difficulties. If the disease permits, human albumin can be supplemented via a peripheral vein, together with diuretics or blood product supplementation, and the main thing is to treat the underlying disease.