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I had a colonoscopy a couple of years ago with just sedation and it was extremely painful, I never want that pain again, so the next one I have will be under general anaethetic. My pain threshold is quite high, but the pain of thios colonoscopy was worse than childbirth. Every one is different and it depends on their condition, I have had ulcerative colitis for 20 years and my colon is not in great shape, which would account for the pain during the procedure. For some people just having sedation may be ok. 

Further to this post,I had the colonoscopy done in late October 2015,I had general anaesthetic(put out completely),and  I must say it was such a improvement on the last one I had done with just sedation which was so painful.The great thing about having general anaesthetic is that you know when you wake up it will be all over with no pain at all. The recovery was fine and having someone collect you from the hospital is not such a big deal. I am so glad I had it done under general. I also was told by the consultant the reason my first colonoscopy was so painful. I had a full hystorectomy to treat ovarian cancer, and part of that surgery removed part of the bowel. He said that with this sort of surgery, the bowel will generally  be replaced at an awkward angle for colonoscopy and endoscopy, which may explain why some people have little pain and some have a lot during colonocopy.  You have a right to ask for general anaesthetic and I beleive it is wel worth any very small risks involved.

Hello please could you tell me which part of the UK you're in that allowed you to have the colonoscopy with a general anaesthetic please? My hospital won't allow me this and I would only have it done if it was that way. 
thankyou 

Hello please could you tell me which part of the UK you're in that allowed you to have the colonoscopy with a general anaesthetic please? My hospital won't allow me this and I would only have it done if it was that way. 
thankyou