It is a safe, effective means of visually examining the full lining of the colon and rectum, using a long, flexible, tubular instrument. It is used to diagnose colon and rectum problems and to perform biopsies and remove colon polyps. Most colonoscopies are done on an outpatient basis with minimal inconvenience and discomfort. Your physician may recommend a colonoscopy exam if you have change in bowel habit or bleeding, indicating a possible problem in the colon or rectum.
A colonoscopy is also necessary to:
Check unexplained abdominal symptoms
Check inflammatory bowel disease (colitis)
Verify findings of polyps or tumors located with a barium enema exam
Examine patients who test positive for blood in the stool
Monitor patients with a past history of colon polyps or cancer