Glycated hemoglobin 6.7% need to improve other tests, after diagnosis of diabetes mellitus is generally need to oral hypoglycemic drugs, insulin injection and other treatments. Glycated hemoglobin is the product of combining glucose and hemoglobin of red blood cells, which can reflect the average blood glucose level in the last three months and can help diagnose diabetes. The normal value of glycated hemoglobin is 4% to 6%, so a glycated hemoglobin of 6.7% is on the high side and may be caused by hyperglycemia or diabetes. However, an elevated glycosylated hemoglobin alone cannot be used to diagnose diabetes, but needs to be combined with blood glucose, glucose tolerance test and other tests, as well as the presence or absence of symptoms related to diabetes such as excessive drinking, excessive eating, excessive urination, etc.; after diagnosis of diabetes, it is generally necessary to take glucose-lowering medication under the guidance of the doctor, such as metformin and gliclazide. Glycated hemoglobin abnormalities, it is recommended that the treatment under the guidance of a doctor.