Inflammatory bowel disease (IBD) is a group of inflammatory conditions of the colon and small intestine, with Crohn's disease and ulcerative colitis (UC) being the principal types.[3] Crohn's disease affects the small intestine and large intestine, as well as the mouth, esophagus, stomach and the anus, whereas UC primarily affects the colon and the rectum.[4][5][6]
^Talley N (2018). Clinical examination: A systematic guide to physical diagnosis. Chatswood, N.S.W: Elsevier Australia. p. 227. ISBN978-0-7295-4259-3. OCLC988941211.