Acute Kidney Injury with Hemolysis after Glycerin Enema-induced Rectal Injury in a Patient with Type 2 Diabetes

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A 66-year-old man with type 2 diabetes was admitted for glycemic control and weight loss. The rectal mucosa was unfortunately injured during glycerin enema administration in preparation for colonoscopy, after which dark red urine and renal dysfunction were observed. Considering the clinical diagnosis of glycerol-induced hemolysis and acute kidney injury, intravenous hydration and haptoglobin administration were started, which successfully treated the dark red urine and renal dysfunction. This case highlights the importance of appropriate glycerin enema administration and emphasizes the need to recognize glycerol-induced hemolysis and acute kidney injury as complications of glycerin enemas. This case also provides insight into glycerol-induced hemolysis and acute kidney injury as complications of glycerin enemas.