Diabetic patients with thin legs often suggest that the current condition is more serious: First, if the diabetic patients with poor blood sugar control, the consumption of the body is more obvious, especially the consumption of protein is relatively large, the patient will show a more obvious wasting of the limbs, especially the lower extremities, so diabetic patients with thin legs often suggest that the blood sugar level is relatively high and poorly controlled. Second, a longer history of diabetes patients are prone to combined peripheral neuropathy, especially peripheral neuropathy of the lower extremities, when diabetes and the appearance of peripheral neuropathy of the lower extremities can also appear double leg muscle atrophy, accompanied by numbness, pain, abnormal sensation of the lower extremities, which also suggests that the patient’s diabetes is more serious. Therefore, diabetic patients with leg degeneration should strictly strengthen blood sugar control, and if peripheral neuropathy exists they should be given nerve-nourishing drugs.