Colonoscopy prep is complete once your poop is a light yellow with no dark particles.
You’ll need to follow a specific low-residue diet to empty yourcolon.
During this process, your stool will change color and consistency.
Illustration by Jessica Olah for Verywell Health
Using a colonoscopy prep poop color chart can help you understand if you’re ready for your colonoscopy.
Illustration by Jessica Olah for Verywell Health
What Should Poop Look Like During Colonoscopy Prep?
The process of emptying your bowels will start a day before the procedure.
You will be instructed to follow aclear liquid diet.
You will also be instructed to take some form oflaxativesand to drinkelectrolyte beveragesto prevent dehydration.
Your bowel movements will change as you progress through the steps.
You may be asked to try an additionalover-the-counter enemaor other product, such as liquidmagnesium citrate.
In particular, avoid anything containing purple, orange, or red dye.
These dyes can look like blood and may interfere with the results of your colonoscopy.
Today, most providers recommend a “split prep” method, also known as “lower volume prep.
“This involves consuming less liquid and dividing up the treatment.
People report that the solution in the split prep procedure is easier to drink.
Summary
Your stool should be clear yellow following completion of your colonoscopy prep.
It’s essential that you follow the bowel prep directions given to achieve these results.
Failing to properly empty your bowels can cause complications during the procedure.
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