Flexible sigmoidoscopy and colonoscopy are very similar. A flexible sigmoidoscopy looks inside the bottom part of your large bowel. A colonoscopy looks at the whole of your large bowel.
Polyps are small growths in the lining of your bowel. They don’t usually cause any symptoms or problems. But there’s a small chance that some can change into bowel cancer over time. If your doctor finds any polyps during your flexible sigmoidoscopy, they usually take them out.
Flexible sigmoidoscopy is used to look inside the bottom part of your lower bowel. It can check for the cause of symptoms such as diarrhoea, constipation or bleeding from your bottom. For more information, see our section: Why do I need a flexible sigmoidoscopy? above.
To get ready for a flexible sigmoidoscopy, you’ll need to have an enema or laxative to empty your bowel. You may need to stop taking some medicines, especially blood-thinning medicines, before your procedure. For more information, see our section: Preparing for a flexible sigmoidoscopy above.
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