Cite this article as: Karaçoban G, Gurbanov A, Özen H, Gün E, Çakmaklı HF, Kendirli T. Successful treatment with ascorbic acid in a case of methemoglobinemia due to glucose-6-phosphate dehydrogenase deficiency. Turk Arch Pediatr. 2024;59(1):112-113.