Preparing for your colonoscopy
Guide to bowel preparation
Thursday, March 20, 2025
The success of your colonoscopy largely depends on how well you prepare for it. A clean bowel allows your specialist to thoroughly examine your colon, ensuring the most accurate results. While bowel preparation might seem daunting, understanding the process can help make it more manageable.
Why proper preparation matters
A thorough bowel preparation is crucial because it:
Allows clear visualisation of your entire colon
Reduces the need for repeat procedures
Increases the detection rate of polyps and abnormalities
Makes the procedure more efficient and comfortable
Ensures the most accurate results
Your preparation timeline
5-7 days before
Consult with your doctor about your current medications
Stop taking iron supplements and any fiber supplements
Avoid seeds, nuts, and whole grains
Plan your preparation days (time off work, support at home)
Food such as rice, noodles, white bread, eggs, white meat (fish, chicken, pork) are generally okay to continue
3 days before
Begin a low-fiber diet
Avoid:
Raw fruits and vegetables
Whole grains
Seeds and nuts
High-fiber cereals
Tough meats
Stock up on clear liquids for your preparation day
The day before
Allowed clear liquids:
Water
Clear broths
Apple juice
White grape juice
Sports drinks (not red or purple)
Black coffee or tea (no milk)
Clear sodas
Jelly (not red or purple)
Your preparation schedule:
Start your clear liquid diet from the moment you wake up
Begin taking your bowel preparation solution as prescribed
Stay near a bathroom
Keep yourself hydrated
Continue clear liquids until bedtime
The day of procedure:
Nothing by mouth as directed by your doctor
Arrive at your scheduled time
Bring a companion to take you home
Tips for successful preparation
Making the solution more palatable
Chill it before drinking
Use a straw placed far back on your tongue
Follow each glass with a clear liquid chaser
Keep the solution cold throughout the process
Comfort measures
Stay near a bathroom
Use soft, unscented toilet paper
Consider using wet wipes
Apply barrier cream to prevent irritation
Wear comfortable, loose clothing
Plan entertainment (books, tablets, etc.)
Stay hydrated
Drink plenty of clear liquids throughout the day
Watch for signs of dehydration
Follow your doctor's guidelines on fluid intake
What to expect
Normal effects
Frequent bowel movements
Loose, watery stools
Mild abdominal cramping
Some nausea
When to contact your doctor
Severe abdominal pain
Severe nausea or vomiting
Signs of dehydration
Inability to complete the preparation
Fever
Common questions
How do I know if I'm clean enough?
Your stools should be clear or light yellow liquid with no solid matter.
What if I vomit the preparation?
Contact our clinic immediately for guidance. We may need to adjust your preparation method.
Can I go to work during preparation?
We recommend staying home with bathroom access during the preparation period.
Our support
As your healthcare provider, we're here to support you through this process. Don't hesitate to contact our clinic if you have:
Questions about preparation
Concerns during the process
Need for clarification on instructions
Unexpected reactions to the preparation
Success rates
With proper preparation:
Over 95% of colonoscopies achieve excellent visualisation
Reduced need for repeat procedures
Higher detection rates for polyps and abnormalities
More accurate results
Remember, while bowel preparation might be uncomfortable, it's a crucial step for a successful colonoscopy. Our team is committed to making this process as smooth as possible for you.
Contact our clinic immediately if you experience any severe symptoms or have concerns during your preparation.