Three months without measuring blood glucose fasting blood glucose rose to 11.1mmol / L, the patient should actively seek medical attention, under the guidance of the doctor to adjust the treatment program. The normal range of fasting blood glucose is 3.9~6.1mmol/L, general diabetic patients fasting blood glucose is recommended to be controlled between 4.4-7.0mmol/L, fasting blood glucose 11.1mmol/L is high. Patients should look for the cause under the guidance of the doctor, such as dietary intolerance, need to control the diet, such as the aggravation of the disease, need to adjust the dose of hypoglycemic drugs under the guidance of the doctor. Fasting blood glucose 11.1mmol/L should be treated under doctor’s guidance.