Colonoscopy is an examination of the rectum, colon, and lower part of the small intestine. The examination is carried out using a coloscope, a flexible hose which is inserted into the rectum. The inside of the bowel is inspected and images are transferred to a monitor.
It is important that the bowel is empty during the examination.
X-ray should be available during the examination to simplify positioning of the instrument.
During a colonoscopy, the following can be performed:
- Polyp removal
- Unblocking of cramped parts
- Coagulation of bleeding
- Suspicion of cancer or inflammation in the colon or lower part of the small intestine
- Obstruction (constricted anastomoses)
- Confirmation and biopsy of pathological changes.