A colonoscopy is an endoscopic examination of the large intestine (rectum and colon) with a fibre-optic camera on a flexible tube (a colonoscope). The investigation is carried out by highly skilled and trained private Gastroenterologist. The procedure is routinely done as an outpatient or day-case procedure, with no overnight stay. Your private doctor will explain the benefits and risks involved, and will also discuss the alternatives to the procedure. Depending on your symptoms, alternatives may include: