COLONOSCOPY

What is Colonoscopy?

Colonoscopy is the examination of the rectum and large intestine (colon) through a telescopic tube which is passed through the anus (or back passage).

Why is it needed?

The examination allows the doctor to see inside the large intestine, and if necessary take a small sample of tissue (biopsy).  This can be important is determining if there is a problem which may be causing pain, bleeding or problems with your bowel motions.  It can also help rule out infections or growths in the large intestine or rectum.

Preparation

It is important to inform the hospital and/or doctor of any health problems, allergies or reactions to drugs that you have that you know about.  You may need to take some drugs and enemas to help clean out the bowel before the test.  You should arrange for someone to both drive you to the hospital and collect you from there after the colonoscopy.

What does it involve?

You may be given a mild sedative to make you sleepy during the procedure.  The tube is flexible (like a narrow garden hose) and is passed through your anus (back passage) up into your large intestine.  Sometimes a small sample of lining (biopsy) is taken for analysis in the laboratory.

Are there any dangers?

This is very a very safe procedure.  You may feel pain and pass wind.  Rarely you may pass a small amount of blood.  Extremely rarely there may be damage to the intestine especially if there is a blockage - if this does occur you will kept in hospital.

What happens after the procedure?

When you are fully recovered you will be allowed to go home.  This is usually an hour or two later.  If you have been given any sedative you should be driven home and should not drive or operate any machinery for 24 hours after the procedure.

You will need to see the doctor (or your own GP) at a later time to discuss the results of the test.

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