Therefore differential diagnosis from idiopathic ulcerative colitis will be needed. Recently, we have examined a 20 year-old Korean female patient who had the complaints of acute lower abdominal pain and bloody diarrhea. The diagnosis of ischemic colitis was confirmed on the basis of colonoscopic and associated histopathological findings. The patient dis-charged with good improvement on the thirteenth hospital day after medical treatment with antibiotics, fluid and electrolytes. We report a case of reversible ischemic colitis of descend-ing colon of a young woman with literature review.