Ask the doctor: I'm due to have a colonoscopy and am feeling nervous about the procedure - what are the risks?
Briefly

A colonoscopy is a medical procedure where a camera is inserted into the rectum to examine the colon for any signs of disease. It is necessary for patients who have presented symptoms like blood in their stool. The procedure requires the colon to be empty, which necessitates a few days of bowel preparation prior to examination. Understanding what to expect can help alleviate some concerns about the process.
A colonoscopy is a camera test into the back passage (rectum) to assess the colon for evidence of disease. It must be performed on an empty colon.
The procedure involves inserting a colonoscope into the rectum to exam your entire large bowel and requires a few days of bowel preparation beforehand.
Read at Independent
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