An official website of the United States government
Here’s how you know
Official websites use .gov A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
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 1/24/2025
Updated by: Jenifer K. Lehrer, MD, Gastroenterologist, Philadelphia, PA. 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.
