A 54-year-old male case with multiple, diffuse hemangiomas of the large intestine is described. Large diffuse hemangiomas were located at the rectosigmoid and the ascending colon. Some polypoid lesions were located on the transverse colon. Tiny calcifications representing phleboliths were detected in those lesions. No skin hemangiomas were present. Although he did not manifest systemic bleeding tendency, blood examinations demonstrated the presence of mild consumption coagulopathy.