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If you’ve been advised to get a colonoscopy, you likely have questions about the procedure, preparation, and what to expect. As a specialist Endoscopic Surgeon at Upper Edge Surgery in Brisbane, I perform colonoscopies regularly and understand the concerns that you may have.
This guide will cover everything you need to know about colonoscopy, including:
What a colonoscopy is and why it’s important
How to prepare for the procedure
What happens during and after the test
Alternative screening options
Common questions answered
What Is a Colonoscopy?
A colonoscopy is a medical procedure that allows the surgeon to examine the inside of your colon (large intestine) and rectum. Using a thin, flexible tube with a camera (colonoscope), we can detect abnormalities such as:
Polyps (precancerous growths)
Colorectal cancer
Inflammatory bowel disease (IBD) like Crohn’s or ulcerative colitis
Diverticulosis (small pouches in the colon wall)
Bleeding or ulcers
Why Is a Colonoscopy Important?
Colonoscopy is the gold standard for colon cancer screening. It can:
✅ Detect cancer early (when treatment is most effective)
✅ Remove polyps before they turn cancerous
✅ Diagnose unexplained symptoms (e.g., rectal bleeding, chronic diarrhoea, abdominal pain)
The Australian government recommends regular colonoscopy screenings for people over 45 (or earlier if you have a family history of colon cancer).
Colonoscopy Preparation: What to Expect
One of the most important parts of a successful colonoscopy procedure is the preparation (colonoscopy prep). A clean colon ensures clear visibility during the exam.
Step 1: Dietary Restrictions
24-48 hours before: Stick to a low-fibre diet (avoid nuts, seeds, whole grains).
The day before: Switch to clear liquids (broth, black coffee, apple juice).
Step 2: Bowel Prep Solution
You’ll drink a special laxative solution to empty your bowels. Common options include:
Picolax, Glycoprep, or Moviprep
Best colonoscopy prep drinks (some clinics offer flavoured options)
Step 3: Fasting Before the Procedure
No solid food after midnight before the test.
Clear fluids only up to 2 hours before (if advised).
💡 Tip: Stay hydrated and avoid red/purple liquids (they can discolour the colon).
What Happens During a Colonoscopy?
Many patients ask: “Is a colonoscopy painful?” The good news is that most people experience minimal discomfort due to sedation.
Step-by-Step Process:
Sedation: You’ll receive light anaesthesia (you’ll be awake but relaxed).
Insertion of the Colonoscope: The flexible tube is gently guided through the rectum.
Examination & Polyp Removal: If polyps are found, they can often be removed during the procedure.
Biopsy (if needed): Small tissue samples may be taken for further testing.
How long does a colonoscopy take? Usually 20-45 minutes, but you’ll need extra time for recovery.
After the Colonoscopy: Recovery & Results
Immediate Recovery
You’ll rest in a recovery area for 30-60 minutes.
You may feel bloated (from the gas used during the procedure).
Avoid driving for 24 hours (due to sedation).
Colonoscopy Results
Normal results? You may not need another test for 5-10 years.
Polyps found? They’ll be sent for laboratory analysis, and you may need more frequent screenings.
Abnormal findings? Further tests or treatments will be discussed.
Colonoscopy Alternatives
While colonoscopy is the most thorough test, other options include:
Virtual colonoscopy (CT colonography) – Uses imaging instead of a scope.
Sigmoidoscopy – Examines only the lower colon.
Stool tests (FIT test) – Checks for hidden blood (less accurate).
💬 Which is better? A traditional colonoscopy is best for full examination and polyp removal.
FAQs About Colonoscopy
1. How often should you get a colonoscopy?
Average risk? Every 5-10 years after age 45.
High risk: Discuss with Dr Goutham today for more information about your personalised surveillance programme.
2. Does a colonoscopy check for haemorrhoids?
Yes, a colonoscopy can detect haemorrhoids, but they are usually diagnosed with a physical exam.
3. Can you eat before a colonoscopy?
No solid food 24 hours before, but clear liquids are allowed until a few hours prior.
4. Is colonoscopy covered by insurance?
In Australia, Medicare and your Private Health Insurer may cover colonoscopy if medically necessary. Check with your doctor.
Why Choose Upper Edge Surgery for Your Colonoscopy in Brisbane?
At Upper Edge Surgery, led by Dr. Goutham Sivasuthan, we provide:
✔ Expert colonoscopy screening with advanced technology
✔ Personalised care and clear communication
✔ Comfortable, patient-focused experience
If you need a colonoscopy in Brisbane, contact us to book a consultation. Early detection saves lives!
📞 Call Upper Edge Surgery today or visit our Contact page to learn more.
Final Thoughts
A colonoscopy is a life-saving procedure that helps prevent colorectal cancer and diagnose digestive issues early. If you’re due for a screening or experiencing symptoms like rectal bleeding or persistent bowel changes, don’t delay—book an appointment with a specialist.
Dr. Goutham Sivasuthan
Upper Edge Surgery – Brisbane
