Introduction: Epilepsy patients sometimes exhibit abnormal behavior, such as allotriophagia. We experienced a case of allotriophagia of dried reeds, which resulted in massive vomitings and sudden death.Presentation of case: A 69-year-old man died after vomitings of a large amount of bloody solution. Autopsy revealed that sharp edge of a piece of dried reeds penetrated the whole layer of the colon at the oral edge of the colon cancer.Conclusion: A bundle of dried reeds stuck in the cancerous ulcer in the colon and induced massive bleeding
