Letter: Can you have a colonoscopy without sedation?

So what about me? Why did I choose to get sedation? Surely I could have toughed-out the pain of the procedure, right? I truthfully think I would have been fine without sedation. However there is one thing that I've learned from being a physician who does procedures for a living: Sometimes there are unintended bad consequences of going against the standard of care.

Letter: Chronic rectal bleeding after colon cancer operation.

Over two years ago, I had a colon resection for the removal of a cancerous tumor (stage 2A). Ever since, I have had on and off bleeding in my stool. My surgeon has done two sigmoidoscopies and my gastro doctor has done two colonoscopies.