What is Crohns disease (CD)?
Crohn’s disease (CD) is an ongoing health problem that usually causes inflammation deep in the walls of the large intestine (colon) and/or the small intestine. But CD can affect any part of the digestive tract from the mouth to the anus. The inflammation usually causes abdominal pain and diarrhea. In other cases CD may cause constipation. Nearly half of all CD cases involve both the small and large intestine. About 30 percent of the time, CD occurs in the small intestine, usually in the ileum (the last part of the small intestine that connects to the large intestine or colon). And about 20 percent of the time, CD affects only the colon. Like UC, people with CD also have periods of remission and relapse.
