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URL of this page: //medlineplus.gov/ency/imagepages/19308.htm
Ulcerative colitis
Overview
Ulcerative colitis is categorized according to location:
Proctitis involves only the rectum
Proctosigmoiditis affects the rectum and sigmoid colon
Left-sided colitis encompasses the entire left side of the large intestine
Pancolitis inflames the entire colon
Review Date 10/20/2025
Updated by: Todd Eisner, MD, Private practice specializing in Gastroenterology in Boca Raton and Delray Beach, Florida at Gastroenterology Consultants of Boca Raton. Affiliate Assistant Professor, Florida Atlantic University School of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
