Myths vs facts: HbA1c and Haut

HbA1c is a long-term blood glucose marker reflecting average levels over 2–3 months. A common myth is that HbA1c only matters for diabetics – in fact, elevated levels in non-diabetics can indicate increased risk for skin issues like acanthosis nigricans, delayed wound healing, or infections. Another myth: HbA1c directly causes skin changes. The fact is that high blood glucose can damage collagen and elastin through glycation, contributing to premature skin aging and stiffness. However, HbA1c is not directly affected by skin conditions but by factors like anemia or hemoglobin variants. Evidence linking HbA1c to skin health comes mostly from observational studies and clinical practice. A normal HbA1c is a good marker of metabolic health but not a standalone skin indicator. Caution: HbA1c testing does not replace dermatological evaluation.