Variceal bleeding.
D003093:Colitis, Ulcerative / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007081:Ileostomy; D011183:Postoperative Complications; D012008:Recurrence; D014648:Varicose Veins / Q000150:complications*