Are Your Symptoms Affecting Your Quality Of Life?
You may need a colonoscopy. Consult our colonoscopy specialist today for a detailed consultation & personalised treatment plan.
Colonoscopy Singapore
Dr. Sulaiman Bin Yusof
MbChB (Sheffield)
M.Med (Surg)
FRCSEd (Gen Surg)
蘇萊曼·尤索夫博士
Who Requires a Colonoscopy?
Colonoscopy is the examination of the lining of the colon with a fibre optic camera. It can detect abnormal tissue, perform biopsies and remove polyps.
You should consider a colonoscopy if you:
- Are aged 45 and above
- Have a family history of colorectal cancer or polyps
- Experience rectal bleeding, altered bowel habits, or unexplained weight loss
- Have persistent abdominal pain
Benefits of Colonoscopy
A colonoscopy offers several benefits. These include:
Early Detection of Colorectal Cancer
Colonoscopy is the most effective method for early detection, allowing for the identification of cancerous and precancerous lesions. Colonoscopies can discover asymptomatic early-stage colorectal cancer, improving treatment and survival.
Removal of Polyps
Polyps are small growths on the inner lining of the colon or rectum. Most polyps are harmless, but some can become cancerous. Polyps can be identified and removed immediately during a colonoscopy, reducing their risk of cancer.
Diagnosis of Gastrointestinal Disorders
A colonoscopy may also help to diagnose gastrointestinal diseases. It can detect Crohn’s illness, ulcerative colitis, diverticulosis, and diverticulitis. These conditions may require further tests such as biopsies or imaging tests for a more definitive diagnosis.
Symptoms Evaluation
A colonoscopy can help evaluate various symptoms, including chronic abdominal pain, rectal bleeding, persistent diarrhoea or constipation, and unexplained weight loss. By visually inspecting the colon and rectum, your colorectal surgeon can identify potential causes such as polyps, inflammation, or other abnormalities.
Thorough Colon Examination
A colonoscopy examines the entire colon and rectum. Unlike other screening methods, such as sigmoidoscopy, which only examines the lower part of the colon, a colonoscopy allows for a complete evaluation. This approach ensures that it detects issues throughout the colon.
Preparation for Colonoscopy
Proper preparation involves several steps that help clear the colon. Key preparation steps are:
- Dietary Restrictions: Before a colonoscopy, patients are encouraged to follow dietary restrictions. This usually involves a few days of low-fibre diet before the procedure. Patients may be instructed to ingest clear broths, tea, black coffee, clear juices, sports drinks, and water the day before the procedure.
- Bowel Preparation: Bowel preparation involves taking a laxative solution prescribed by the colorectal surgeon. The solution is usually consumed the day before the colonoscopy, often in split doses.
- Medication Adjustments: Inform your colorectal surgeon of all medications being taken so they can provide specific instructions. Certain medications may need to be stopped or changed.
- Staying Hydrated: Drinking plenty of clear drinks prevents bowel preparation-related dehydration. Avoid drinks with red or purple colouring, as these can be mistaken for blood during the colonoscopy.
Step-by-Step Procedure
A colonoscopy involves several key steps, which include:
Post-Procedure Care and Recovery
Proper care and recovery after a colonoscopy are important to ensure a smooth and comfortable recuperation.
Immediate Care
After the colonoscopy, patients will be moved to a recovery area, where they will be monitored as the sedation wears off. This period typically lasts about 30 minutes to an hour. Patients may feel groggy or drowsy due to the sedatives, and it is normal to experience mild cramping or bloating caused by the air introduced into the colon during the procedure.
Dietary Guidelines
Once fully awake, patients can gradually resume their regular diet unless otherwise advised by the colorectal surgeon. Starting with light meals and avoiding heavy, greasy, or spicy foods may help prevent stomach discomfort. Staying hydrated by drinking plenty of fluids is also recommended.
Activity Restrictions
Patients should avoid driving, operating machinery, or making decisions for at least 24 hours after the procedure due to the lingering effects of sedation. Resting at home is encouraged, and most patients can return to normal activities the following day.
Pain Management
Any mild cramping or bloating usually resolves within a few hours. Over-the-counter pain relievers are generally sufficient if discomfort persists, but patients should avoid aspirin and nonsteroidal anti-inflammatory drugs (NSAIDs) unless advised otherwise by their colorectal surgeon.
Monitoring for Complications
Complications are rare, but some symptoms may require medical treatment. Severe abdominal discomfort, fever, chills, extensive rectal bleeding, or dizziness should be reported immediately to your doctor.
Follow-Up Instructions
Before leaving the medical facility, patients will receive specific follow-up instructions. This may include when to resume medications, dietary recommendations, and any required follow-up appointments.
Recovery Process
The overall recovery timeline after a colonoscopy is usually short and straightforward. Most patients feel fully recovered within a day.
Risks of Colonoscopy
The risks can range from common, minor issues to serious complications.
Potential Risks
Colonoscopy is generally considered safe, but it carries some common risks.
- Abdominal Cramping and Bloating: Mild abdominal cramping and bloating are common due to the air introduced into the colon during the procedure. This air helps expand the colon for better visibility but may cause temporary discomfort. These symptoms usually resolve within a few hours after the procedure.
- Dizziness and Nausea: Patients may experience dizziness or nausea as the sedation wears off. These symptoms are typically mild and short-lived. Drinking fluids and resting can help alleviate these symptoms.
Frequently Asked Questions
What should I wear to the procedure?
Wear comfortable, loose-fitting clothing on the day of the procedure. You will change into a hospital gown for the colonoscopy, but comfortable clothing is recommended after the procedure.
What happens if I can’t complete the bowel preparation?
If you have difficulty completing the bowel preparation or cannot finish the laxative solution, inform your colorectal surgeon. Inadequate bowel preparation can affect the quality of the examination and may necessitate rescheduling the procedure.
How effective is colonoscopy in preventing colorectal cancer?
Colonoscopy is highly effective in detecting and preventing colorectal cancer. By identifying and removing precancerous polyps, the procedure greatly reduces the risk of developing colorectal cancer. Regular screenings are important for early detection and prevention.
Can I drive myself home after the procedure?
No, due to the sedatives or anaesthesia used during the procedure, you have to arrange for someone to drive you home. The effects of the sedatives can impair your ability to drive or operate machinery safely.
How do I prepare for a colonoscopy if I have diabetes?
Patients with diabetes should discuss their condition with their colorectal surgeon before the procedure. Special instructions regarding medications, diet, and blood sugar monitoring may be provided to ensure a safe and effective preparation and procedure.
Is colonoscopy Medisave claimable in Singapore?
Yes, colonoscopy is Medisave claimable in Singapore when performed for diagnostic or therapeutic purposes. This includes colonoscopy for colorectal cancer screening, polyp removal, and investigation of symptoms such as rectal bleeding or a change in bowel habits. The amount claimable depends on the procedure performed and your Medisave account balance. Screening colonoscopy may be subject to different Medisave rules. Dr. Sulaiman’s team can provide detailed guidance on Medisave claims and any out-of-pocket costs during your consultation. Please call +65 8491 1525 for more information.
How much does a colonoscopy cost in Singapore?
The cost of a colonoscopy in Singapore varies depending on whether it is performed in a private clinic, day surgery centre, or hospital, and whether any additional procedures (such as polyp removal) are performed during the same session. As a general guide, a diagnostic colonoscopy at a private specialist clinic in Singapore typically ranges from $1,500 to $3,000 or more, inclusive of anaesthesia and facility fees. Medisave can be used to offset a portion of the cost for eligible procedures. Dr. Sulaiman’s team will provide a detailed cost estimate during your consultation. Please call +65 8491 1525 for more information.
How long does it take to recover after a colonoscopy?
Recovery after a colonoscopy is generally quick. Most patients feel well enough to return home within 1 to 2 hours after the procedure, once the effects of the sedation have worn off. You should arrange for someone to drive you home, as you will not be able to drive on the day of the procedure due to sedation. Most patients can resume normal activities, including returning to work, the following day. If polyps were removed during the procedure, your doctor may advise you to avoid strenuous activity for a few days. Any mild bloating or discomfort usually resolves within a few hours.
How long does a colonoscopy take?
The procedure itself takes 20 to 45 minutes. However, patients should allow 3 to 4 hours in total for registration, pre-procedure assessment, the procedure itself, and recovery from sedation before being discharged.
How do I prepare for a colonoscopy?
You will need to follow a low-fibre diet for 1 to 2 days before the procedure, then a clear liquid diet the day before. You will also take a prescribed bowel cleansing solution to fully empty the colon. Dr. Sulaiman’s team will provide detailed written preparation instructions at the time of booking.
Is colonoscopy painful?
Most patients experience little to no discomfort. The procedure is performed under conscious sedation — a light intravenous anaesthesia — so you will be relaxed and comfortable throughout, with little to no memory of the procedure afterwards. Any mild bloating or cramping after the procedure typically resolves within a few hours.
How soon can I return to normal activities after a colonoscopy?
Most patients can return to normal activities, including work, the following day. You should avoid driving for 24 hours after sedation and arrange for someone to accompany you home on the day of the procedure. If polyps were removed, your doctor may advise avoiding strenuous activity for a few days.
At what age should I start colonoscopy screening in Singapore?
MOH recommends that average-risk individuals begin colorectal cancer screening at age 50. If you have a family history of colorectal cancer or polyps, screening should begin earlier — typically at age 40, or 10 years before the age at which your family member was diagnosed, whichever comes first.
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*Extended Panel
Dr. Sulaiman Bin Yusof
MbChB (Sheffield)
M.Med (Surgery)
FRCSEd (General Surgery)
蘇萊曼·尤索夫博士
Dr. Sulaiman Bin Yusof is a Senior Consultant colorectal and general surgeon with over 15 years of specialist experience. Fellowship-trained at the Peter MacCallum Cancer Centre in Melbourne, he is one of a select group of surgeons in Singapore listed on the da Vinci Xi surgeon locator — reflecting his expertise in robotic-assisted colorectal surgery.
Recipient of the Singapore Health Quality Service Star Award 2023, Dr. Sulaiman is known for clear communication, unhurried consultations, and outcomes-focused care across his five clinic locations in Singapore.
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