Fasting blood glucose 6.5mmol / L, need to distinguish between the population category, if it is a pregnant woman, you need to suspect whether the diabetes; if it is an ordinary non-diabetic population, considered for the impaired fasting glucose; if it is an ordinary diabetic patients, then consider the fasting glucose control is still okay; if it is gestational diabetes, consider the blood glucose control is still not up to standard. Ordinary people fasting blood glucose range value is 3.9 ~ 6.1mmol / L, pregnant women fasting blood glucose should be less than 5.1mmol / L. So fasting blood glucose 6.5mmol / L, if it is a pregnant woman, you need to suspect that whether the diabetes; if it is an ordinary non-diabetic people, considered for the fasting blood glucose is impaired. If it is an ordinary diabetic patient, fasting blood glucose control is 4.4-7.0mmol/L. If fasting blood glucose is 6.5mmol/L, consider that fasting blood glucose control is fair. If the patient is gestational diabetes mellitus, fasting blood glucose requirement is less than 5.3mmol/L, fasting blood glucose 6.5mmol/L, consider that the blood glucose control is still not up to standard. It is recommended to monitor the 2-hour postprandial blood glucose situation at the same time, some people’s fasting blood glucose is still okay, the 2-hour postprandial blood glucose has been significantly elevated. It is recommended to go to the hospital for evaluation and treatment under the guidance of a professional endocrinologist.