Colonoscopy

The

colon

starts at the end of the small intestine and ends at the rectum and anus. A

Gastroenterologist

will undertake a colonoscopy using a long flexible tube (a colonoscope) and thread it up through the rectum and transmits an image to a viewing screen. The lining of the colon and rectum can be inspected for such things as inflamed tissue, abnormal growths, and ulcers. is most often used to look for early signs of cancer in the colon and rectum, and for causes of unexplained changes in

bowel

habits.