About 1/3 of people with impaired fasting glucose develop diabetes after a few years, therefore, when impaired fasting glucose occurs it should be treated as early as possible, checked frequently, and actively prevent the occurrence of diabetes. Impaired fasting blood glucose refers to a person whose blood glucose is in the normal range 2 hours after taking sugar, i.e. blood glucose value ?7.8 mmol/L, but whose fasting blood glucose is higher than normal, but has not yet reached the diagnostic standard of diabetes, i.e. blood glucose value ≥ 6.1 mmol/L, but ?7.0 mmol/L. Impaired fasting blood glucose is a transitional stage from normal to diabetes, also called pre-diabetes. At this stage, if it is not controlled early, it may develop into diabetes soon. The main way to prevent the occurrence of diabetes is to pay attention to diet life therapy and exercise therapy. The main diet and life is not to overeat, life, diet is regular, eat slowly, eat more vegetables, eat less and more meals, total control, drink more water, do not stay up late, avoid eating late at night, quit smoking and limit alcohol; exercise should be based on their age, weight, body condition to develop a reasonable exercise mode level exercise intensity, if through diet and exercise control still can not meet the standard can choose some drugs For example, metformin, etc., and impaired fasting blood sugar is often combined with abnormal blood lipids, so you can also choose lipid-lowering drugs according to the patient’s situation. Therefore, impaired fasting blood glucose should be prevented through a healthy diet and lifestyle, reasonable exercise intensity and reasonable medication.