Diabetes-induced double lower extremity edema should first be clear about the cause, and can be relieved by dietary control, diuretic swelling, lowering sugar and other treatments. 1. Dietary control: when lower limb edema occurs in diabetic patients, the intake of salt and sugar should be strictly controlled to relieve the symptoms. 2. Diuresis: diuretics can be applied to reduce swelling, such as spironolactone, hydrochlorothiazide, etc., which can help reduce lower limb edema. 3. Glucose lowering: patients need to control blood sugar within the normal range, take metformin tablets, glibenclamide tablets and other hypoglycemic drugs, or inject insulin to lower sugar. If diabetic patients have symptoms of double lower extremity edema, go to the hospital as soon as possible to see a doctor, to identify the cause and then give targeted treatment.