Abstract
Diabetes Mellitus (DM) is a main cause of serious health problems such as stroke, blindness, renal failure, and amputation. Glycated hemoglobin (HbA1c) has emerged as an important biomarker for monitoring long-term glycemic management, representing average glucose levels over the previous 8-12 weeks. The World Health Organization (WHO) recommends HbA1c as the gold standard for monitoring and predicting diabetes-related problems. This review emphasizes how important it is and how accurate interpretation is required to inform therapy decisions that work.