Ulcerative Colitis
Ulcerative colitis is a chronic, or long-lasting, disease that causes inflammation and sores, called ulcers, in the inner lining of the large intestine, which includes the colon and the rectum—the end part of the colon. UC is one of the two main forms of chronic inflammatory disease of the gastrointestinal tract, called inflammatory bowel disease (IBD). The other form is called Crohn’s disease.