Body edema should firstly limit water intake, secondly diuretics can be applied to diuretic to reduce swelling, and the main thing is to actively look for the cause of the disease. Patients with body edema indicate that too much water has been stored in the body, so it is necessary to limit the water intake, and the daily water intake should preferably be based on the previous day’s urine volume plus 500ml. Salt should also be limited, preferably to 3g per day, which is equivalent to half a beer bottle cap. If edema is still obvious after dietary adjustment, diuretic drugs can be used, more commonly used are furosemide and torasemide, but these drugs should not be used for too long, generally in the application of 3-5 days after the edema subsides should be discontinued, long-term application of side effects are still relatively large. In the symptomatic treatment, we must actively look for the causes of edema, more common are various nephritis, nephrotic syndrome, right heart failure, hypothyroidism and liver cirrhosis, etc.