The olympus CF-240I It can be inserted retrograde down through the anus to examine the rectum, sigmoid colon, descending colon, transverse colon, ascending colon and cecum as well as a small section of the small intestine (ileocecal end) connected with the large intestine. It can clearly detect intestinal lesions and also treat some intestinal lesions, such as: direct microscopic removal of benign lesions such as colon polyps, microscopic hemostasis of intestinal bleeding, and removal of foreign bodies in the colon.