1. Ulcerative colitis affects 250, 000 to 400, 000 Americans, the company said.2. Inflammatory bowel disease consists of Crohn's disease, ulcerative colitis and microscopic colitis. 3. Ulcerative Colitis affects 250, 000 to 400, 000 Americans, the company said.4. Gastrointestinal disorders such as ulcerative colitis , regional enteritis, sprue and coeliac disease. 5. Breast-feeding may provide long-term protection against diabetes, ulcerative colitis and Crohn's disease. 6. He had an operation for ulcerative colitis which had evolved into peritonitis. 7. Endoscopic image of ulcerative colitis affecting the left side of the colon. 8. Ulcerative colitis affects many parts of the body outside the intestinal tract.9. Ulcerative colitis is a chronic disease that cycles through so-called flare-up periods.10. Ulcerative colitis is a chronic disease which cycles through so-called flare-up periods.