The numerical unit of diabetes is MMOI/ liter. Please refer to the following: (1) The diagnosis of diabetes is mainly judged by blood sugar measurement. Reference value of fasting blood glucose (FBG) in normal people: glucose oxidase method: 3.9 ~ 6. 1 mmol/L o-toluidine method: 3.9 ~ 6.4 mmol/L reference value of fasting blood glucose in diabetic patients: mild diabetes: 7.0 ~ 8.4 mmol/L, moderate diabetes: 8.4 ~10.500. Oral glucose tolerance test: 30 minutes ~ 1 hour, the normal value is 7.8 ~ 9.0 mmol/L, not more than 7.8 mmol/L after 2 hours, and the fasting blood glucose level should be restored after 3 hours. That is, 3.9 ~ 6. 1 mmol/L or 3.9 ~ 6.4 mmol/L, and the urine sugar test in the above stages was negative. (3) It can also be judged by the measurement of glycosylated hemoglobin. The reference value of glycosylated hemoglobin in normal people is 4% ~ 6%. When the reference value is greater than 9%, the accuracy of predicting diabetes is 78%. When the reference value is greater than 10%, the accuracy of predicting diabetes is 89%. It can also suggest that there are serious complications at this time and should be actively treated.