Glycated hemoglobin is the full name of glycated hemoglobin. If the glycated hemoglobin is 6.5%, and accompanied by the typical symptoms of diabetes, i.e., three more and one less (drinking, eating, urinating, and unexplained weight loss), then the diagnosis of diabetes mellitus will be considered, and medicines will be needed. Glycated hemoglobin reflects the average blood glucose in the last 2~3 months, the normal reference range is 4~6%, if the glycated hemoglobin is 6.5%, it is too high. If accompanied by the typical symptoms of diabetes mellitus, i.e., three more and one less (more drinking, more eating, more urination, and unexplained weight loss), diabetes mellitus is considered, and further endocrinology consultation is needed, and medication is required after diabetes mellitus is diagnosed. It is recommended that patients with higher than normal glycosylated hemoglobin should consult the endocrinology department of a regular hospital for treatment under the guidance of a doctor.