Colonoscopy

What is a colonoscopy?

It is an internal examination of your lower large intestine including your rectum and colon. It is performed for bowel cancer screening, to check for and remove colon polyps if you've had polyps before, and to investigate bowel symptoms.

During the procedure, a long, thin, flexible tube with a video camera and light source on one end, called a colonoscope, is inserted through your anus and passed into your colon and rectum to allow your doctor to see inside. No cuts are required as the colonoscope passes through the natural opening of your anus. Air is pumped into your bowel through the colonoscope to lightly inflate it so your Consultant has a better view of your bowel.

Your doctor may insert tiny instruments through the colonoscope to take a tissue biopsy or to remove polyps or other abnormal tissue.

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