Blood glucose examination items include the following: 1. fasting blood glucose examination, the normal range of fasting blood glucose is 3.9-6.1mmol/L. 2. the normal range of blood glucose two hours after meal is 4.4-7.8mmol/L, if the blood glucose two hours after meal is ≥11.1mmol/L, it is abnormal blood glucose and diabetes symptoms appear. 3. OGTT-OGIRT test It is mainly to further confirm the diagnosis of diabetes, in order to identify whether it is type 1 diabetes, or type 2 diabetes. 4.To do the measurement of glycosylated hemoglobin, mainly to understand the control of blood sugar in the last 2-3 months, but also to supervise the adjustment of blood sugar of diabetic patients.