Eyelid swelling in diabetic patients is usually seen in the following situations: First, diabetic patients with poor glycemic control may cause eyelid edema, usually after waking up in the morning eyelid swelling, but after the afternoon eyelid swelling will subside. In the second case, diabetes mellitus with a history of more than 5-10 years and diabetic nephropathy, large amount of proteinuria can also cause eyelid and lower limb edema. In addition to treating the renal lesions, taking diuretics can also relieve eyelid swelling. Thirdly, if diabetes mellitus is combined with hepatic, renal or cardiac insufficiency, it can also cause eyelid swelling, which is often accompanied by swelling of the lower limbs, pleural and abdominal fluid. Treatment, in addition to controlling the primary disease, the administration of diuretics can also relieve edema.