What Is Ulcerative Colitis?

Ulcerative colitis and Crohn’s disease are the most common types of inflammatory bowel disease. Ulcerative colitis affects only the colon and rectum. Crohn’s can affect any part of the digestive tract. To learn more about Crohn’s disease, see the topic Crohn’s Disease. What is ulcerative colitis?

Ulcerative colitis is a disease that causes inflammation and sores (ulcers) in the lining…