Fasting blood glucose of 6.22mmol/L belongs to the category of pre-diabetes, but it also needs to be combined with the 2-hour postprandial blood glucose judgment. If the diagnosis of pre-diabetes is clear, most of them can be made through life interventions, such as exercise, diet and other ways to bring blood sugar back to normal. Prediabetes is usually categorized into reduced glucose tolerance and impaired fasting blood glucose, of which reduced glucose tolerance fasting blood glucose <7.0mmol/L, 2-hour postprandial blood glucose 7.8~11.1mmol/L; impaired fasting blood glucose 6.1~7.0mmol/L, 2-hour postprandial blood glucose <7.8 mmol/L. Most patients with prediabetes can get their blood glucose under control through lifestyle intervention. In daily life, patients can choose aerobic exercise suitable for them according to their own conditions, such as swimming, jogging, etc., and maintain a healthy weight. At the same time, a low-salt, low-sugar and low-fat diet can help to bring the patient's blood glucose back to normal. If blood glucose remains poorly controlled despite diet and exercise, patients can be treated with hypoglycemic drugs, such as metformin, as prescribed by the doctor. It is recommended that patients with abnormal blood glucose monitor their blood glucose regularly, consult a doctor if they feel unwell, make a clear diagnosis, and standardize the treatment under the doctor's guidance.