A colonoscopy is an endoscopic procedure during which your colon or large bowel is examined using a tiny camera on the end of a tube that is guided by the doctor. This allows for a diagnosis to be made and samples to be taken. Other therapeutic procedures are also performed through the colonoscope such as removal of polyps, insertion of stents, dilatation of strictures and treatment of lesions.
Common reasons for requiring a colonoscopy include
a positive FOBT
investigation of symptoms (for example rectal bleeding, pain, anaemia),
reinvestigation of prior polyps,
a family history of bowel cancer
Bowels must be completely emptied before having a colonoscopy and this aided by taking medication the day before the procedure.
The procedure itself generally takes no more than half an hour with the patient under deep sedation. The observation period afterwards is short - generally 1-2 hours and patients can leave after this when given the OK by medical staff. Do not drive or operate any machinery until the following day.
Dr Bell will discuss the risks associated with colonoscopy, based on your own personal circumstances. Generally colonoscopy is extremely safe.