AbstractIn infants, hematochezia must be approached with a broad differential diagnosis, including anal fissure, allergic colitis, Meckel's diverticulum, intestinal malrotation, necrotizing enterocolitis, and less commonly arteriovenous malformations, gastrointestinal duplications, and hemangiomas. Infantile hemangiomas, the most common tumor of infancy, are typically cutaneous lesions. Those arising from viscera are much less common but can cause significant morbidity and mortality if not diagnosed early and managed appropriately. We present a 6-week-old male with recurrent hematochezia who was initially diagnosed with milk protein intolerance but ultimately found to have a diffuse intestinal hemangioma. He was treated with propranolol, me...