What is colonoscopy prep actually like?

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The honest answer: the prep is the worst of it, and it is one evening plus a morning - the procedure itself, sedated, is the easy part. The day before: clear liquids only - broth, clear juice, sports drinks, tea, black coffee, gelatin - nothing red or purple, which can mimic blood in the colon. Then the laxative solution: most modern preps split the dose, half the evening before, half about six hours before the procedure. Expect multiple urgent trips to the bathroom over a few hours once it starts working - plan to stay home, near the toilet, with entertainment set up in advance. The output goal is liquid that runs clear yellow, per NIDDK's procedure guidance.

Making it bearable: chill the solution, drink it through a straw, chase each glass with a clear liquid you like, and use barrier cream early - skin gets sore. Chillers to avoid: do not skip the second half - the split dose is what cleans the right side of the colon, and a poorly cleaned colon can mean a missed polyp or a repeat procedure.

The day itself: nothing by mouth for the final hours, someone to drive you home because of the sedation, most people nap through the procedure and feel normal by the next morning. One evening of prep for up to ten years of peace of mind is the deal.

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What is colonoscopy prep actually like?

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