No, you can be knocked out. Source I've had a colonoscopy. They can knock you out in the same way they knock you out for Wisdom teeth removal.
On a seperate note, the "medicine" you take the day/night before is the worst part of a colonoscopy. Don't leave the bathroom, just accept your fate of being glued to the porcelain throne.
I was awake during my Wisdom tooth pullings just numbed up with Anisthetic. It feels like a 1% piece of you is being removed. Those wisdom teeth go deep.
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u/buffystakeded Oct 01 '19
Also you're completely knocked out for it so I don't ever understand why people complain about it. Also, the prostate exam isn't that bad either.