Diabetic calf swelling should first clarify the cause of the disease, and then for the cause of the treatment. Diabetic leg swelling may be related to diabetic nephropathy, heart disease, such as diabetic nephropathy caused by swelling of the calves, you can control the blood sugar, in addition to the need to use diuretic under the guidance of the doctor, improve blood circulation of the drug. Diabetes-induced swelling of the calves may be on the one hand, the kidney function is impaired, so that a large increase in urinary protein and thus the emergence of hypoproteinemia. On the other hand, the blood circulation in the lower legs is impaired due to vascular and neuropathy in the extremities, leading to edema in both lower limbs. The appearance of calf edema should immediately go to the hospital, under the guidance of the doctor, continue to use oral hypoglycemic drugs such as metformin or insulin, in addition to the use of diuretic drugs such as furosemide and drugs to promote blood circulation. In daily life, we should pay attention to maintain a low-sugar, low-fat and low-salt diet, and exercise appropriately.