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The hemangiomas of the intestine are not often considered in connection with gastrointestinal bleeding of unknown etiology. However, it is important that this is included in the differential diagnosis of iron deficiency anemia due to chronic blood loss or acute gastrointestinal hemorrhage. The purpose of this article is to describe a case of a large cavernous hemangioma of small bowel presenting as an iron deficiency anemia and review the literature on small bowel hemangiomas. In a review of the Mayo Clinic data from 1976 to 1993, we found another eight cases of small bowel hemangiomas. Three patients had hemangioma localized in the jejunum, two in the ileum, two in the duodenum and one with universal hemangiomata. There were five male and three female with mean age of 51.6 years (range 8 to 81 years). Hemangioma was an incidental finding in five patients with no related symptoms.