Glycosylated hemoglobin of 6.8% is slightly above normal for diabetic patients, but it is within the control target range and is usually not considered serious. Blood glucose should be controlled within a reasonable range to avoid complications, and active treatment should be prescribed by the doctor. Glycated hemoglobin is the product of the combination of hemoglobin in red blood cells and sugar in serum, which can effectively reflect the average blood glucose concentration of patients in the past 2~3 months, and its normal range is 4%~6%. If a diabetic patient has a glycated hemoglobin of 6.8% it suggests that the average blood glucose concentration over the past period of time is within the control target. The glycemic control goal for diabetic patients requires a glycated hemoglobin of 7.0% or less. For diabetic patients whose glycosylated hemoglobin is higher than the control target, it is recommended to take glucose-lowering drugs such as gliclazide or insulin injections under the guidance of a doctor to keep their blood glucose within a reasonable range, so as to avoid the occurrence of diabetic nephropathy, diabetic macrovascular disease, diabetic foot and other serious complications caused by prolonged poor blood glucose control. Diabetic patients with a glycated hemoglobin of 6.8% are advised to go to the hospital and ask the doctor to make a judgment, and should not make a blind judgment on their own.