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Detect, Prevent and Stay Ahead of Colorectal Cancer

Dr Dennis Koh

The leading cancer in Singapore, yet the most preventable, colorectal cancer is a condition that consultant colorectal surgeon, Dr Dennis Koh and colon surgeon Dr Sharon Koh, are dedicated to treating. We provide detailed screenings and treatments to ensure that you and your family stay healthy in years to come.

Drop us a message here or call us at 6262 1226 to enquire today.

Dr Dennis Koh

Welcome to Colorectal Practice

Colorectal Practice is helmed by Medical Director, Dr Dennis Koh and Senior Consultant Surgeon, Dr Sharon Koh. We strive to be a one-stop colorectal treatment centre in Singapore for all colorectal issues including colon cancer, piles and hernia.

We firmly believe in preventive care and early detection, and we adopt a wide range of minimally invasive colorectal and colon surgery techniques with personalized care for a smooth patient journey.

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Our Clinic’s Strengths


Your health is our priority. No two treatment plans are the same as each is tailored to your needs.


Our colorectal and colon doctors specialise in the field of colon and colorectal surgery with international experience.


Our colorectal clinic strives to minimize discomfort and downtime with advanced laparoscopic techniques.


We encourage timely screenings as colon cancer can exhibit little to no symptoms in its early stages.

Specialized Areas of Treatment

At our colorectal clinic, we provide a comprehensive list of screening services, diagnostic tools and treatment options to manage colorectal issues, from piles to colorectal cancer. Managed by experienced colorectal surgeons, Dr Dennis Koh and Dr Sharon Koh, our specialty in colorectal surgery includes techniques like laparoscopic surgery, single-port surgery, robotic surgery and transanal endoscopic procedures. All our treatment plans are specifically tailored to suit each individual patient.

Call 6262 1226 to arrange for a detailed consultation today.



Piles (haemorrhoids) is an often painful condition caused by enlarged and inflamed blood vessels in and around the anus. With a trusted piles doctor, however, you can get treated in a safe and efficient manner.

Colorectal Cancer

Colorectal Cancer

Colorectal cancer is the No. 1 cancer in Singapore. Thankfully, with timely screenings, it can be effectively detected and prevented in the early stages. Various targeted treatment methods are also available.

Other Specialized Services

Our Surgeons

Dr Dennis Koh

Dr Dennis KohMedical Director & Senior Consultant Colorectal Surgeon

MBBS (Nottingham), B Med Sci (Nottingham)
MMed (Surgery), FRCS (Edinburgh), FAMS

Dr Dennis Koh is a MOH-accredited and experienced colorectal surgeon; and currently the Medical Director at Colorectal Practice.

Dr Koh strives to provide a customized treatment plan for each patient, which allows for better outcomes. He also honed his skills in proctology abroad in Geneva, bringing a more diverse touch to his practice.

Dr Sharon Koh Zhiling

Dr Sharon Koh ZhilingSenior Consultant Colorectal Surgeon

MBBS (Singapore), MMed (Surgery),
FRCS (Edinburgh), FAMS

Dr Sharon Koh is an experienced surgeon and the former Director of Endoscopy at Alexandra Health.

Dr Koh completed her fellowship at Cedars-Sinai Medical Centre in the US after being awarded the Academic Medicine Development Award by the National University Hospital.

Comprehensive Range of Colorectal Services for Your Peace of Mind

We tailor our treatments based on your lifestyle requirements and healthcare needs. At our colorectal clinic, we believe in providing personalized care as it allows for better surgical outcomes and creates a supportive environment for our patients.

For a detailed consultation, contact us at 6262 1226 or fill up the contact form below.