Pre-meal blood glucose, two hours after meal blood glucose are a little higher, glycated hemoglobin is also a little higher, should promptly consult a regular hospital, a clear diagnosis of timely treatment, if belongs to the pre-diabetes, the exercise, dietary intervention is the main, if has reached the diagnostic criteria for diabetes mellitus, the application of oral hypoglycemic drugs or injections of insulin to lower blood sugar. Diabetes can be diagnosed when fasting blood glucose ≥7.0mmol/L, or two-hour postprandial blood glucose ≥11.1mmol/L, or random blood glucose ≥11.1mmol/L, or glycated hemoglobin ≥6.5%, which meets any of the above criteria, and there are also the clinical manifestations of “three more and one less”. After the diagnosis of diabetes mellitus, oral hypoglycemic drugs or insulin injections should be used to lower glucose in a timely manner, together with diet and exercise therapy. If preprandial blood glucose, 2-hour postprandial blood glucose are a little higher, glycated hemoglobin is also a little higher, but none of them reach the diagnostic standard of diabetes mellitus, may be in the pre-diabetic stage, then exercise, dietary intervention is the main focus, control body weight, timely and effective glycemic control or can be restored to normal blood glucose. It is recommended to actively seek medical advice and individualized treatment.