A colonoscopy is an examination of the large bowel (colon) using a thin, flexible camera, done to look for polyps, inflammation and other causes of symptoms — and to screen for bowel cancer. This page gathers our most-watched colonoscopy videos, the step-by-step guide, and straight answers to the questions people ask most.
Does a colonoscopy hurt?
It is usually done with sedation, so most people feel little more than pressure or bloating from the air used during the examination, and many remember very little of it afterwards. Tell the team if you are uncomfortable — they can adjust things.
How long does a colonoscopy take?
The examination itself is usually well under an hour. You will be at the unit longer than that, though, because of check-in, the sedation, and recovery time afterwards.
Can polyps really be removed during the same test?
Yes. Small polyps can often be removed through the colonoscope during the examination, and small tissue samples can be taken for testing. You wouldn’t feel either happening.
Why do I need someone to take me home?
Because of the sedation. It can leave you drowsy and slow your reactions for the rest of the day, so driving yourself — and making big decisions — should wait until the following day.
This page is for general education only and is not medical advice. Whether you need a colonoscopy, and how to prepare for one, are decisions to make with your own clinician — follow the preparation instructions your unit gives you.
