Dear Doctors: I'm having my first colonoscopy in a few months. My friends say it's unpleasant, and I'm already dreading it. I think it would help if I knew what's going to happen. How often do you need to get a colonoscopy?
And is there any way around having to use that prep drink?
Dear Reader: A colonoscopy is an exam that allows a doctor to see the inside of the large intestine. It may be used to …