Uploaded January 2026 | Updated September 2026, 2 weeks ago
How do doctors diagnose Crohn's or ulcerative colitis? Doctors use a colonoscope, which is put through the anus, into the rectum and around the entire colon, so that they can then can looks at the small intestine. This is important to diagnose Crohn's disease or ulcerative colitis because they look very different during a colonoscopy, and the better the view, the easier the diagnosis and the appropriate the treatment.
Dartmouth Health is New Hampshire's only academic health system and the state's largest private employer, serving patients across northern New England. With more than 13,000 employees, we are deeply committed to serving the healthcare needs of everyone in our communities, and to providing each of our patients with exceptional, personal care.
Read more about IBD if you think you might have the disease at:
dartmouth-hitchcock.org/stories/article/do-you-think-you-might-have-crohns-disease.
How do doctors diagnose Crohn's or ulcerative colitis? Doctors use a colonoscope, which is put through the anus, into the rectum and around the entire colon, so that they can then can looks at the small intestine. This is important to diagnose Crohn's disease or ulcerative colitis because they look very different during a colonoscopy, and the better the view, the easier the diagnosis and the appropriate the treatment.
Dartmouth Health is New Hampshire's only academic health system and the state's largest private employer, serving patients across northern New England. With more than 13,000 employees, we are deeply committed to serving the healthcare needs of everyone in our communities, and to providing each of our patients with exceptional, personal care.
Read more about IBD if you think you might have the disease at:
dartmouth-hitchcock.org/stories/article/do-you-think-you-might-have-crohns-disease.
