It is performed after bowel preparation which is done at home.

The procedure is done under light sedation as a day case

The principle indications are

• To investigate symptoms of colonic disease.
• To obtain biopsies from lesions seen at colonoscopy or by other tests such as barium enema.
• To perform therapeutic procedures such as polypectomy and stent placement.
• To follow up patients with colonic disease in the past such as polyps or colitis (termed surveylance)
• To screen for asymptomatic disease such as colon polyps.

More information for Colonoscopy can be found here