Colonoscopy

Why do I need a colonoscopy?

Colorectal cancer is the most common cancer affecting both men and women in Singapore. That said, it is also one of the most preventable forms of cancer.

A colonoscopy is a preventive measure for diseases such as colon cancer and rectal cancer.

Worldwide studies have shown that early detection of cancer and the removal of polyps can save lives.

What is a colonoscopy?

A colonoscopy helps in the detection of abnormalities such as polyps, cancerous growths, or other changes to the mucosal lining.

This is done by having a colonoscope inserted painlessly through the anus and carefully maneuvered by your surgeon.

This allows the surgeon to have an internal view of the large intestines, including the rectum and colon.

The colonoscope also allows for the surgeon to remove any polyps and sample the tissue for any signs of cancer.

Diagnosis and treatment

Symptoms and who is at risk of colorectal cancer

Even without symptoms, going for regular screenings is encouraged as a measure of prevention.

You should go for a Colonoscopy if you:

Have a family history of colorectal cancer
Age 50 and above
Notice blood in the stools
Notice a change in bowel habits
Experience persistent abdominal discomfort
Experience unexplained weight loss

Individuals who are at higher risk includes a family or personal history of colorectal cancer, or a previous history of having colorectal polyps.

It is recommended for such individuals to go for a colonoscopy screening 10 years prior to youngest case in the family, or age 40 years (whichever is earlier).

How do I prepare myself for a colonoscopy?

You will be given a bowel prep solution to drink on the night before or the morning of the procedure. This will result in repeated large bowel movements to clear the large intestine of faecal material.

It is best to also avoid a high-fibre diet 3 days before the colonoscopy. You should also inform your surgeon if you have any drug allergies or are taking any blood-thinning medications as these may have to be stopped in advance.

What happens during a colonoscopy?

You will be placed on your side with your knees drawn toward your chest. Medications will be given through an IV line to help you relax and remain comfortable.

You may or may not fall completely asleep during the colonoscopy, but most patients will not be able to remember the procedure.

Some monitoring devices will be attached to your body during the examination. The whole procedure should take up to 20 to 30 minutes during which, you may experience abdominal bloating. The nurse may apply occasional pressure with her hand on your abdomen to assist in the procedure.

What happens after the colonoscopy ?

When the procedure is completed, you will be transferred back to the recovery ward where monitoring continues while you recover from the sedation. As flatus (gas) is passed, you will feel less bloated/distended.

When you are fully awake and comfortable, you will be given a drink and some food. It is strongly recommended that you have someone to accompany you home after the procedure.

help center

Frequently asked questions

Are there any complications that can occur?

Colonoscopy is a very common day surgery procedure and major complications are rare.

Should there be any, they may include:

Severe reaction to medications
Bleeding from the site of biopsy or polypectomy
Perforations (tears) along the lining of the intestinal wall

Should these occur, it is important to contact your surgeon urgently so that follow-up measures may be undertaken immediately.

How cost-effective is colonoscopy in Singapore compared to other tests?

Any form of colorectal screening is demonstrated to be cost-effective compared to no screening. The best method of screening is controversial and difficult to determine.

Various methods ranging from serum tumour marker, faecal occult blood testing, barium enema to CT colonography are available.

However, when considering patient compliance and accuracy, getting a colonscopy once or twice in your lifetime appears to have the best acceptance and accuracy.

Who should go for a colonoscopy?

It is recommended that individuals aged 45 and above undergo screening. You should also consider a colonoscopy if you have a family history of colorectal cancer. Certain symptoms may also warrant a colonoscopy, such as:

Blood in the stools
A change in bowel habits
Persistent abdominal discomfort
Unintentional weight loss

For further questions about colonoscopy, Dr. Thomas Ho has prepared a guide to address common patient concerns.

What is the cost of colonoscopy in Singapore?

Colonoscopy fees for the surgeon or specialist typically range from $1,200 to $1,800 SGD*, excluding GST, facility charges, and consumables. Additional consultation fees are billed separately. The total cost may vary depending on the complexity of your case. You may be able to use Medisave or insurance to cover part of the procedure before it takes place.

*Fees are based on Ministry of Health (MOH) guidelines. For a more detailed cost estimate, please contact our clinic.

Can I use insurance or Medisave?

Yes you may use insurance or Medisave to subsidise the cost of your colonoscopy. Prior to your colonoscopy, our clinic will help with pre-authorisation and securing a letter of guarantee from your insurer to ensure coverage for the procedure. Please contact our clinic and consult with your insurance agent to determine the estimated coverage for your screening.

The Specialist Behind Your Care

Dr Thomas Ho

Senior Consultant General Surgeon

20+ Years of Clinical Experience

MBBS(Sydney), MMed(Surg), AFRCS(Ireland), FRCS(Edinburgh), FAMS(General Surgery), FSSO(USA)

Dr. Thomas Ho is a distinguished surgeon well known for his expertise in Cancer Surgery, especially in the field of Head and Neck cancers as well as Abdominal and Digestive cancers. In 2009 he was awarded a MOH scholarship and completed a Surgical Oncology Fellowship in Canada, becoming one of only a handful of surgeons in Singapore with this recognition.

Prior to private practice, Dr. Ho founded the Head and Neck Surgery and Surgical Oncology service at Tan Tock Seng Hospital. Dr. Ho is experienced in laparoscopic (keyhole) and robotic-assisted surgery, which he routinely employs in the treatment of thyroid cancer, colorectal cancer, hernias, gallbladder diseases, adrenal and spleen disorders.

Dr. Thomas Ho is accredited to perform endoscopies and surgery across all private hospitals in Singapore.

Regular screening is recommended for individuals aged 45 and above or those with a family history of colorectal cancer. If you are due for a colonoscopy, contact our clinic today.

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