36 years old fasting blood sugar 18mmol / L is usually can follow the doctor’s advice through medication to adjust to the normal range. The normal range of fasting blood glucose is 3.9~6.1mmol/L, reaching or exceeding 7mmol/L has reached the diagnosis of diabetes mellitus one of the criteria, so exclude acute infections, traumas and other factors affecting blood glucose fasting blood glucose 18mmol/L need to be considered as a possible occurrence of diabetes. If diagnosed with diabetes, you can follow the doctor’s instructions to take acarbose, metformin and other hypoglycemic drugs or injections of insulin therapy, with appropriate exercise, dietary control, blood glucose control within a reasonable range. Therefore, 36-year-old fasting blood glucose 18mmol/L can be adjusted by medication treatment. The 36-year-old man who has fasting blood sugar 18mmol/L is recommended to go to the hospital, ask the doctor to make judgment and give treatment measures.