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I have had it done(by a local surgeon friend of mine) and it was fine. In fact it's due again-every 5 years or so at my age. The anesthetist gave me fentanyl, which really makes it quite tolerable, no hangover for me. This is one of those medical tests that pretty much catches colon cancer before it can catch you. This is the gold-standard test for diagnosing this form of cancer, and most insurance companies pay for it. If you are over 50, you need to do it.
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