Colonoscopy is an examination of the large bowel carried out by doctor with use of an endoscope. Endoscope is an flexible, optoelectronic device equipped with a micro camera which transmits an image to a monitor.
Endoscope is passed through the anus, the rectum to the large bowel. In particular cases endoscope can be passed to an ending part of the small bowel.
Absolute indications for colonoscopy are:
- family cancer history
-loss of weight
-bleeding of the lower part of the gastrointestinal tract
Colonoscopy can be also therapeutic method. After finding a source of bleeding it is possible to seize it with use equipment passed through an endoscope.
Colonoscopy can also reveal polyps of the large bowel, which can be removed during an examination. Polyp is an abnormal, mostly benign, growth of tissue of the large bowel. Their size is from a few millimetres to even a few centimetres. Because of the fact that large bowel cancer can develop from a single polyp, all those growths should be removed.