The test results of diabetes mellitus mainly include the following indicators: i. Fasting blood glucose as well as blood glucose two hours after a meal, which directly reflects the patient’s current level of blood glucose control. ii. Glycated hemoglobin, this indicator represents the level of blood glucose control in the past 2-3 months, and the doctor will adjust the glucose-lowering program according to the changes of these two indicators. Third, urine microalbumin creatinine ratio, reflecting whether diabetes is accompanied by kidney damage, if there is a persistent elevation of urine microalbumin creatinine ratio, and exclude other causes of elevation, it is considered to be diabetic nephropathy.