Diabetic patients who find their legs thinning may indicate a more serious condition, but the condition should also be assessed in conjunction with the blood glucose value, glycated hemoglobin, complications and other conditions. Diabetic patients with unsatisfactory blood glucose control, sugar absorption and utilization is seriously impaired, resulting in fat and protein being overconsumed and body wasting, which leads to the symptoms of thinning legs. Complications such as diabetic nephropathy and diabetic fundopathy may also occur if blood glucose control is poor for a long period of time. For diabetic patients, the goal of glycemic control is generally in the fasting blood glucose 4.4mmol / L ~ 7.0mmol / L, non-fasting blood glucose does not exceed 10.0mmol / L, glycated hemoglobin needs to be controlled at 7.0% or less, but also according to the individual situation to develop a glycemic control goals. It is recommended that diabetic patients seek timely medical treatment and adhere to long-term standardized treatment.