Colonoscopy Singapore

A colonoscopy is a diagnostic procedure performed to detect and remove any abnormal growths in the colon and rectum. It is highly recommended as an effective screening examination for colorectal cancers

Colonoscopy FAQs

What is a colonoscopy?

A colonoscopy is a specialised examination that allows our Singapore colorectal surgeon to visualise the large intestine (colon). By inserting a long and flexible tube with a HD video camera attached to one end known as a colonoscope, our doctor is able to guide the camera safely to the areas to be examined and detect any growths.

Why do I need this colonoscopy?

This screening test is usually recommended for evaluation of symptoms of the colon such as bleeding, change in bowel patterns, abdominal discomfort, or for colorectal cancer screening. The large intestine is the site where numerous disorders occur, such as haemorrhoids (piles), inflammation, polyps and cancer. If needed, treatment can also be performed at the same examination; for example, a polyp can be painlessly removed via the colonoscope using electrocautery (electrical heat).

How does colonoscopy work?

The evening before a colonoscopy, you will need to take laxatives to clean out your large intestine. The procedure is done with you lying on one of your sides. An injection of a sedative and painkiller is usually given to make you relax and go into light sleep, and your pulse and oxygen level will be monitored with a finger-probe throughout the procedure.

Lubricant will be applied into your anus. A fingertip examination of the anal canal is first carried out. The colonoscope is then gently introduced into the anus and steered through the entire large intestine. The entire procedure takes between 15 to 20 minutes. In cases where a polyp removal is necessary, it may take 10 to 15 minutes longer, depending on the number of polyps to be removed.

What are the possible complications from a colonoscopy?

Although colonoscopy is a relatively safe procedure, complications can sometimes occur. The 2 main risks are bleeding and bowel perforations with an occurrence of less than 1 in 1000 cases (0.1%). The risk is increased with procedures that require polyp removal because it creates a small ulcer that can sometimes bleed and the thinned-out area of polyp removal can lead to a perforation. Heavy bleeding after removal of a polyp sometimes requires transfusion or reinsertion of the colonoscope to control the bleeding.

What can I expect after the colonoscopy?

After the procedure, you will be brought to the recovery area for monitoring and observation. You should not drive or operate machinery on the same day. For this reason, someone else should preferably be available to accompany you home. An appointment will be scheduled to review the findings of the colonoscopy, answer any questions you may have and, if needed, discuss future treatment.

What are other alternative options to a colonoscopy?

Alternative tests to colonoscopy include barium enema and CT colonography. Both are specialised forms of x-ray tests that outline the colon and allow a diagnosis to be made. Study of the stools and blood can also provide some indirect information about the condition of your colon.

These exams, however, do not allow direct visualisation of the colon, removal of polyps, or tissue samples of abnormal findings. In addition, x-rays require exposure to radiation which is undesirable in children and young women of child-bearing age. For these reasons, colonoscopy is still the preferred gold standard for colonic examination.

We’ve Got Your Colorectal Care Covered.
Colorectal Clinic Singapore
Dr. Kam Ming Hian
Senior Consultant Colorectal Surgeon
MBBS (Singapore), M.Med (Surgery)

With more than two decades of experience managing colorectal conditions, our colorectal surgeon Dr Kam Ming Hian is a well-known figure in the medical arena. As the former Director of Robotics & Minimally Invasive Surgery in the Department of Colorectal Surgery, SGH, Dr Kam has successfully treated many patients, and received multiple awards for service excellence during his career.

He is well-published in international journals and has also been invited to speak at various conferences. To date, colorectal surgeon, Dr Kam has performed thousands of gastroscopy and colonoscopy procedures, and conducted regular endoscopy training courses for the next generation of medical students.

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Over thousandsof colonoscopy and gastroscopy procedures performed.
  • 20 Years of Colorectal Experience

  • Skilled in Minimally Invasive & Laparoscopic Techniques

  • Individualised & Cost Effective Treatment for Every Patient

  • Medisave and Insurance-Covered Treatment and Procedures

We are proud to provide patients with highly personalised and affordable colorectal treatments in Singapore. At Kam Colorectal Centre, we’ve got your colorectal health covered.

Call +65 6443 1005 or fill in the form below to book a detailed consultation with us.

Colorectal Surgeon Singapore - Colon Surgeon
6443 1005
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KAM COLORECTAL CENTRE Farrer Park Medical Centre 1 Farrer Park Station Road, #14-16 Connexion Singapore 217562 Tel : +65 64431005 Fax : +65 64431895 Email :

Clinic Opening Hours: Monday - Friday : 9am - 5pm
Saturday : 9am - 12.30pm
Sunday and Public Holidays : Closed