Common Conditions

Colonoscopy: Operation

The sedation is given through a needle in the back of your hand and you will feel the effect within seconds. You will be given oxygen through a small tube inserted in your nose. Your oxygen levels and heart rate will be monitored using a finger peg.

The procedure will not start until the sedation has taken effect. The colonoscope is carefully inserted into the back passage and air is passed into the colon to make the lining easier to see. This may cause some cramp like discomfort and most patients will pass some wind.

Do not be embarrassed as it is a consequence of the procedure and the staff expect it. Any biopsies that are necessary, or indeed any polyps that can be removed will be done so using tiny instruments that are passed up inside the colonoscope. At the end of the procedure the scope is withdrawn quickly and easily.