Urine test glucose (+-), that is, urine test glucose suspected positive, is not yet sure whether diabetes. Because diabetic patients can not control blood sugar, normal people or patients with kidney disease, once glucose over the function of renal reabsorption, more than the renal glucose threshold, may lead to urine glucose is positive. To rule out whether it is diabetes or not, further glucose tolerance test is needed, and it is recommended to consult a doctor in the endocrinology department. The doctor will prescribe a glucose tolerance test, fasting plasma glucose, and 75g anhydrous glucose powder sugar water, and then measure the two hours after the meal blood glucose, continue to draw plasma glucose, combined with glycated hemoglobin, you can determine whether it is diabetes.