How much blood glucose is considered diabetes depends on the status of the patient testing the blood glucose. For example, plasma glucose level ≥7.0mmol/L in fasting state; 2h plasma glucose level ≥11.1mmol/L in 75g glucose tolerance test; random venous plasma glucose level ≥11.1mmol/L are the diagnostic criteria of diabetes. If a patient has the typical symptoms of “three more and one less”, i.e., polyuria, polyphagia, polyphagia and weight loss, and any of the above three blood glucose levels reach the standard, diabetes can be diagnosed. However, if the patient does not have the typical “three more and one less” symptoms, the blood glucose needs to be retested to verify the diagnosis of diabetes again. Glycosylated hemoglobin is also recommended to be included in the diagnostic criteria of diabetes, but it has not been included in the diagnostic criteria of diabetes in China because there is no way to standardize it. Usually, glycosylated hemoglobin reflects the average blood glucose status in the last 3 months, and its normal value is usually in the range of 4%-6%, and if it is ≥6.5%, the possibility of diabetes should be considered. Do not be overly alarmed if you meet the diagnostic criteria for diabetes, but you can start with lifestyle interventions and blood glucose retesting. If the blood glucose is well adjusted after lifestyle intervention, no additional medication is needed for the time being. If your blood sugar is not well controlled by lifestyle intervention, you should add medication to regulate your blood sugar in a timely manner under the guidance of your doctor.