Clinically, fasting blood glucose and two-hour postprandial blood glucose, random blood glucose values are generally measured as the diagnosis of diabetes, one hour postprandial blood glucose, in contrast, is not very suitable for measurement. Diabetes can be diagnosed if the patient’s fasting blood glucose is greater than or equal to 7.0 mmol/L, and the two-hour postprandial or random blood glucose is greater than or equal to 11.1 mmol/L, and at the same time, the patient has the typical symptoms of diabetes (polyuria, polydipsia, polyphagia, and weight loss). Patients with diabetes need to monitor their blood glucose regularly, mainly by measuring fasting blood glucose and blood glucose two hours after meals, to avoid progression of the disease. Treatment for diabetes mellitus is mainly through lifestyle intervention, dietary adjustments, appropriate exercise and, if necessary, oral hypoglycemic drugs or insulin injections under the guidance of a doctor. If you have elevated blood glucose, please go to the Endocrinology Department for reasonable and standardized diagnosis and treatment.