Clearing your bowels for a colonoscopy usually begins the day before with a low-fiber diet and clear liquids, followed by strong laxatives that cause watery diarrhea, with the process generally taking several hours (often 6-14) to complete, resulting in clear, yellowish liquid stool by the time of the procedure. You'll typically start needing the toilet within 1-3 hours of the first laxative dose, but it's crucial to stay near a toilet and follow your doctor's specific instructions for timing.
Mix your laxative drink and start drinking it, following the instructions below or a handout from the medical center. (Do not follow the instructions on the bottle itself.) Start drinking the laxative between 4 p.m. and 7 p.m. (You will need up to 6 hours to complete the laxative drink and finish bowel movements.)
Yes, colonoscopy prep causes frequent, watery diarrhea that can last for hours and may wake you up, but the goal is for your bowels to be clear by morning, with most activity stopping a couple of hours after the last dose. You'll poop a lot, often starting within an hour of your first dose, transitioning from brown to clear/yellow liquid as the prep works, meaning you need to stay near a toilet, but it shouldn't be all night if timed correctly.
It's normal to feel bloated and gassy after the procedure; abdominal cramping may also occur. You'll be encouraged to pass gas to help reduce bloating. You may pass liquid and/or liquid stool after your colonoscopy but, within one to five days, your bowel movements should return to normal.
In this way, the doctor examines your entire large intestine twice. If they find something in the process that they need to remove or treat, this will add extra time. Colon polyps are common: they turn up in about 30% of routine colonoscopies. Although most are benign, it's standard procedure to remove them on sight.
If your colonoscopy was normal, your doctor may tell you the same day. If you had any polyps or other abnormal findings, your results may take up to a week to come back and you should expect a phone call or message from your doctor. A colonoscopy is recommended every 10 years.
An abnormal result means something was found, such as polyps, inflammation or bleeding. The number, size and type of these findings determine when the next colonoscopy should be scheduled.
After undergoing a colonoscopy procedure it's best to begin by eating light and mild foods before transitioning to your regular diet. Choose options, like crackers applesauce, and broth at first. Stay away from greasy or rich foods that could potentially irritate your stomach.
Everyone's Colon Is Different
Many people start their prep and expect something to happen within minutes– but everyone is different and for some people, prep just takes longer to begin and complete. For the average patient prep takes about 6-8 hours to complete, and often women can take longer than men.
Symptoms
On average, individuals may experience a weight loss of around 2-3 pounds during colonoscopy prep. This weight loss is primarily due to the clearing of your bowels through the use of laxatives and a clear liquid diet.
Don't drink your prep all at once
Instead, we recommend a more effective way to clean your colon called split-dose prep. This means drinking half of the prep the night before your procedure, usually within about a two-hour window. Save the other half of the prep for the morning of your procedure.
If your last bowel movements were clear enough that you were able to see the bottom of the toilet, you should be fine. The yellow color is a result of the bile that normally colors the feces. This shouldn't interfere with the examination.
DRINK LOTS OF FLUIDS: It is very important to stay well hydrated during your bowel preparation process. The more liquids you drink, the better you will feel.
You'll typically experience bowel movements or diarrhea 1-4 hours after bowel preparation. If you haven't had a bowel movement in this time, continue the bowel preparation as instructed, drink more water, and walk around. Stay close to a restroom.
However, if your bowel movements are still solid or look like pictures #1, #2, or #3, you are probably not prepped adequately enough and will need to cancel your procedure. Do I need to drink all of the bowel prep solution? Yes. In order to properly see the lining of the colon, the colon must be completely clean.
The colon absorbs water and minerals. The waste dries out as it moves through the colon. On average, this may take up to 36 to 48 hours. The waste exits through the rectum and anus as stool.
There are several types of solutions or pills you can use to clear the colon. Depending on which method your healthcare provider prescribes, you may start having bowel movements within an hour of your first dose. 1 It can then take about 14 hours to complete the process.
If a doctor does find anything suspicious during your colonoscopy, the first thing they'll do is take tissue samples of it and send them off to a lab for a biopsy. That's because not all abnormal colon growths are cause for concern.
The First Week after a Colonoscopy
However, our patients should not hesitate to take more time to rest if needed. If polyps are found and removed during a colonoscopy procedure, the recovery period will be slightly longer. After polyps are removed it can take up to a week for the patient to fully recover.
Drink Plenty of Water
Drinking plenty of water and staying hydrated is a great way to regulate digestion. Experts recommend drinking 6–8 glasses of warm water daily to cleanse the colon. Additionally, you should consume water-rich foods like watermelon, tomatoes, lettuce, and celery.
Preparing for a colonoscopy requires clearing the bowel with fasting, a laxative drink and, in some cases, and enema. While such preparation can alter the microbiome, the rich array of microbes that are present in the gut, research suggests that the microbiome bounces back in about two to four weeks.
Call your doctor or nurse advice line now or seek immediate medical care if: You have pain that does not get better, even after passing gas. You are sick to your stomach or cannot drink fluids. You have new or worse belly pain.
10 Common Conditions Detected Through A Colonoscopy
So, the more polyps you have, the higher your cancer risk. Someone with just one or two small polyps is generally at lower risk of having or developing colon cancer than someone with three to nine, or more.