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Dr Tan Wah Siew
Senior Consultant Colorectal Surgeon
MBBS, MMed (Surgery), FAMS, FRCSEd
Dr Tan Wah Siew is an established colorectal surgeon with two decades’ experience in managing anal fistulas and perianal conditions.

Prior to moving to private practice, Dr Tan Wah Siew was senior consultant surgeon at the Department of Colorectal Surgery at Singapore General Hospital (SGH). There, she became the first female consultant colorectal surgeon and was one of the earliest female general surgeons in Singapore to undergo training in robotic colorectal surgery.

Dr Tan graduated from National University of Singapore’s Faculty of Medicine in 2003 and subsequently completed her Advanced Surgical Training in General and Colorectal Surgery at SGH in 2011.
In 2013 she finished a year-long MOH-sponsored Healthcare Manpower Development Plan Fellowship (HMDP) at St. James University Hospital in Leeds, United Kingdom. While there, she received training in:
  • Minimally invasive and robotic colorectal surgery for colorectal cancer
  • Surgery for inflammatory bowel disease
  • Treatment of locally advanced rectal cancers
  • Recurrent pelvic cancers requiring removal of multiple organs and/or pelvic exenterations

Academic & Research Involvement

Dr Tan has published widely in multiple peer-reviewed journals. She has been a reviewer for numerous local and international journals, including the Singapore Medical Journal, British Journal of Surgery, Colorectal Disease and International Journal of Colorectal Disease.

Teaching Medical Students, Residents & Nurses

Dr Tan has always been an active participant in the teaching of medical students, surgical residents, and nurses. Her involvement includes conducting laparoscopic and endoscopic skills training courses for both international delegates and surgical residents.

A Trusted Hand in Anal Fistula Care

Your comfort and well-being come first – schedule a confidential appointment with Dr Tan today.

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Worried About Your Symptoms?
We’re Here to Help.

It is normal to feel uneasy, especially if you are dealing with an unfamiliar and sensitive condition. If you are experiencing symptoms of anal fistula, please book a consultation with Dr Tan today at 6454 0054 or click here to WhatsApp.

Alternatively, fill in the appointment form below and we’ll be in touch with you shortly.
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Our Clinic Location:
Mount Elizabeth Medical Centre
#08-07, 3 Mount Elizabeth, Singapore 228510
Tel6454 0054
Fax6764 0054
Emailask@surgicalassociates.sg
Gleneagles Medical Centre
#05-01, 6 Napier Road, Singapore 258499
Tel6471 0054
Fax6271 0054
Opening Hours:
Mon to Fri9am to 5pm
Sat9am to 1pm
Sun & PHBy Appointment Only