Fasting blood glucose has been around 7mmol/L serious. For the undiagnosed population, need to receive glucose-lowering treatment as soon as possible after a clear diagnosis; for diabetic patients, there may be glucose control does not meet the standard, if necessary, can be adjusted glucose-lowering program, otherwise the risk of diabetic complications is relatively high. Fasting blood glucose 3.9-6.0mmol/L is normal, 6.1-6.9mmol/L is impaired fasting glucose regulation, and ≥7.0mmol/L with diabetic symptoms can be diagnosed as diabetes. Therefore, for undiagnosed people, if the fasting blood glucose has been around 7mmol/L, it is necessary to clarify the diagnosis as soon as possible and receive glucose-lowering treatment. For diabetic patients, the goal of glycemic control is generally in the fasting blood glucose 4.4mmol / L ~ 7.0mmol / L, has been in the 7mmol / L or so there may be glycemic control does not meet the target, if necessary, can be adjusted glucose-lowering program, otherwise the risk of diabetic complications is relatively high. If there is an abnormal fasting blood glucose test result, it is recommended to consult a doctor in time, with the help of the doctor to clarify the cause of the disease, and targeted treatment or therapy.