Poisoning is a significant contributor to mortality and morbidity throughout the world, and one of the most common pesticide poisonings is organophosphates, followed by phosphides. Ingestion of aluminum phosphide can induce severe gastrointestinal irritation leading to hemorrhage and ulcerations. Gastrointestinal ischemia, gangrene, and hemorrhage in the ileum secondary to aluminum phosphide poisoning have not been reported in the literature. The authors report a case of an 18-year-old man who had consumed 10 grams of Celphos, aluminum phosphide powder. The patient developed lower gastrointestinal ischemia and hemorrhage due to the direct effect of aluminum phosphide, leading to bowel gangrene. The gangrenous segment caused fecal peritonitis and sepsis, leading to multiorgan failure and death. This case report emphasizes the significance of the corrosive nature of aluminum phosphide; lower gastrointestinal hemorrhage is a rare but fatal complication of aluminum phosphide poisoning.