MBBS, PhD, MRCP, FRCP.
Gastro Specialist in Manchester.
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0161 495 7000
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A colonoscopy is a test, which allows the endoscopist to look at the lining of the colon (large bowel). It provides an excellent view of the mucosal surface from the anal canal to the terminal ileum. Almost any intraluminal lesion can be detected and biopsied.
Your stay on the endoscopy unit could be up to 2 hours or more depending on individual recovery time, also please note that your appointment time is only your admittance time.
A colonoscopy is done by passing a long flexible tube (endoscope) which is approximately the thickness of your index finger, into the bowel via the anus (back passage).
The examination usually takes about 30 minutes although it can sometimes take longer.
During the procedure
In some cases it may be necessary to take small samples of tissue (biopsies) using tiny forceps, which are then sent to the laboratory for testing. The taking of biopsies is usually painless and very safe.
It may be necessary for the endoscopist to remove polyps from the lining of the bowel. These polyps are projections of tissue, which grow on the lining of the bowel and are removed using a small wire loop. Removing polyps is usually painless.