Crohn disease (CD) and ulcerative colitis (UC) are the 2 major forms of inflammatory bowel disease (IBD). CD can affect any portion of the alimentary tract, from the mouth to the anus, and is a transmural process. UC, as the name implies, affects the colon’s mucosal lining. A 2004 literature review estimated that 1.4 million people in North America and 2.2 million in Europe have IBD.1 It is highly likely that there are many people with IBD who are undiagnosed. Approximately 25% of IBD patients are diagnosed in their first 2 decades of life, with an increased incidence reported in teens.2,3
To continue reading, please log in or purchase access.