What to Expect During a Colonoscopy | The Vascular & General Surgery Centre

Our clinic strives to provide comprehensive vascular and general surgery treatments using advanced techniques that maximize patients’ comfort and recovery.

For a consultation, please contact us at +65 6736 2302 or fill up the form below and we will get back to you as soon as possible

A colonoscopy is one of the most effective ways to detect changes in the colon and rectum, including polyps, inflammation, bleeding, and signs of colorectal cancer. Despite its importance, many people hesitate due to uncertainty about the process or fear of discomfort.

In reality, a colonoscopy is a safe, routine procedure that could potentially save your life. With proper preparation and care, it is generally quick and well-tolerated. Here’s what you can expect before, during, and after a colonoscopy in Singapore.

What Is a Colonoscopy?

A colonoscopy is a diagnostic procedure used to examine the inner lining of the colon (large intestine) and rectum. It involves the use of a long, flexible tube with a camera at the tip called a colonoscope. This tool allows the doctor to view the entire length of the colon and identify any abnormalities.

Colonoscopy is commonly used to:

Screen for colorectal cancer
Investigate unexplained abdominal pain or bleeding
Monitor existing digestive conditions like inflammatory bowel disease
Remove polyps or suspicious growths during the same session

During the Colonoscopy

The procedure is usually done in a specialised endoscopy suite and takes around 20 to 30 minutes.

Here is what you can expect:

Sedation

You’ll be given light sedation or intravenous medication to help you relax and stay comfortable. You may feel drowsy but generally remain conscious. Some patients may not remember the procedure afterward.

Positioning

You will lie on your left side with your knees drawn toward your chest. This position helps to straighten the colon, allowing the scope to pass through more easily.

Insertion of the colonoscope

Once you are sedated and in position, the doctor will gently insert a lubricated colonoscope into your rectum. The colonoscope is a thin, flexible tube with a camera and light at the tip, which allows the doctor to navigate through the colon and view its inner lining.

To improve visibility, air or carbon dioxide is introduced through the scope to inflate the colon slightly. You may feel some pressure or mild cramping during this process, especially as the scope moves around bends in the colon.

Visual examination and polyp removal

As the scope is advanced, the camera sends live images to a monitor, allowing the doctor to inspect the entire length of your colon. If any abnormal growths, such as polyps, are detected, they can often be removed during the same procedure using special instruments passed through the scope.

The doctor may also take small samples of tissue for further analysis if needed. Removing polyps at this stage can help prevent colorectal cancer from developing in the future.

Completion

Once the examination is complete, the doctor will carefully withdraw the scope while continuing to inspect the colon lining. Any remaining air in the colon may be released to help reduce bloating or cramping.

The entire process is conducted with careful attention to detail and patient safety. After the procedure, you will be moved to a recovery area to allow the sedative to wear off, and the medical team will monitor you for a short period before discharge.

Risks and Safety

Colonoscopy is a very safe procedure with a low risk of complications. However, as with any medical procedure, there are some risks:

Bleeding, especially if polyps are removed
Perforation (a rare tear in the colon wall)
Reactions to sedatives
Infection (very rare)

These risks are uncommon and can usually be managed effectively if they occur. The benefits of early detection far outweigh the risks for most patients.

Tips for a Smooth Experience

Follow all prep instructions precisely
Stay hydrated the day before (with clear liquids)
Wear loose, comfortable clothing on the day
Arrange for someone to accompany you home
Take the day off work and rest afterward

Being well-prepared can make the experience more comfortable and ensure accurate results.

Conclusion

A colonoscopy is a vital tool in detecting and preventing colorectal cancer and other gastrointestinal conditions. Though the idea may seem daunting at first, the procedure itself is quick, relatively painless, and highly effective. For more information, please contact our specialist clinic today.

Hernia surgeon in Singapore Dr Sujit Singh Gill

meet our specialist Dr Sujit Singh Gill

Consultant Vascular & General Surgeon
MBBS (Singapore), MMed (Singapore), FRCS (Edinburgh)

A skilled vascular and general surgeon in Singapore with 25 years of experience, Dr Sujit Singh Gill’s main interests include the minimally invasive treatment of venous, arterial and diabetes-related vascular disorders. His expertise in general surgery also allows him to treat various colorectal, gastrointestinal and hepatobiliary conditions with good patient outcomes. Having trained in Singapore, Australia and the United Kingdom, Dr Sujit Singh Gill’s diverse background also helps put his patients at ease.

The Vascular & General Surgery Centre
Unit 18-05, Paragon Medical Suites, 290 Orchard Road, Singapore 238859
Tel: +65 6736 2302 Fax: +65 6736 4186 Whatsapp : +65 8866 7837 Email: enquiry@tvgsc.sg
24-hour Answering Service : +65 6535 8833
Blog

Top