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Dr Alex Soh

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  • Consultant, Division of Gastroenterology and Hepatology, Department of Medicine, Alexandra Hospital
  • Consultant, FAST Programme (Get Better), Alexandra Hospital
  • Consultant, Chronic Programme (Live Better), Alexandra Hospital
  • Consultant, Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital


MB BCh (Ireland), MRCP (UK), M.Med (Int Med, Singapore), SAB (Gastroenterology, Singapore), MCI, FAMS



Clinical Disciplines/Programmes:

Gastroenterology & Hepatology

Special Interests:

Irritable Bowel Syndrome (IBS), Functional Dyspepsia, Chronic Diarrhea, Chronic Constipation, Gastroesophageal Reflux Disease (GERD), Achalasia


Dr Alex Soh graduated from the Royal College of Surgeons in Ireland (RCSI) in 2011. Subsequently, he obtained his Membership of the Royal College of Physicians (MRCP, UK), Master of Internal Medicine (Singapore), and completed Internal Medicine Residency training in 2014 at the National University Hospital (NUH), Singapore. He then underwent specialist training under the Division of Gastroenterology and Hepatology at NUH and obtained his Gastroenterology specialist accreditation from the Specialist Accreditation Board of Singapore (SAB) in 2017, and joined as a Fellow of the Academy of Medicine Singapore (FAMS). Since then, he has further obtained a Masters of Clinical Investigation (MCI) at the National University of Singapore.

Dr Alex Soh now serves as a Consultant in the Division of Gastroenterology and Hepatology at the National University Hospital. He is also an Assistant Professor at the Yong Loo Lin School of Medicine in the National University of Singapore and is currently part of the NUHS Clinican Scientist Program. His clinical and research interests include Gut microbiome, and Functional and motility gastrointestinal diseases such as Irritable Bowel Syndrome (IBS), Functional Dyspepsia, Chronic Diarrhea, Chronic Constipation, Gastroesophageal Reflux Disease (GERD), and Achalasia.

Dr Alex Soh also serves in the executive committees of the Gastroenterology Society of Singapore (GESS), Irritable Bowel Syndrome Support Group (IBS-SG), the Asian Barrett's Consortium (ABC) and Asian Neurogastroenterology and Motility Association (ANMA).

Journals & Publications

  1. Clinical and Basic Neurogastroenterology and Motility, Chapter 31 - Chronic Constipation. 1st Edition, Published Nov 2019. P435-443. ISBN 978-0-12-813037-7 doi: 10.1016/C2015-0-06629-1
  2. “Editorial: raising the bar on probiotic foods.”. Soh AYS, Gwee KA. Aliment Pharmacol Ther. 2019 Feb;49(4):474-475. doi: 10.1111/apt.15117
  3. “The role of inflammation in irritable bowel syndrome (IBS).” Ng QX, Soh AYS, Loke W, Lim DY, Yeo WS. J Inflamm Res. 2018 Sep 21;11:345-349. doi: 10.2147/JIR.S174982
  4. “Rising prevalence of colonic diverticulosis in a westernized multi-ethnic Asian community.” Soh YSA, Ooi SQD, Chan YH, Siah KTH, Lee SE, Lee WJJ, Zhu F, Yeoh KG, Gwee KA.
  5. J Gastroenterol Hepatol 2020 Jun doi:10.1111/jgh.15165 PMID: 32602133
  6. “Searching for a definition for pharmacologically refractory constipation: A systematic review”. Soh AY, Kang JY, Siah KT, Scarpignato C, Gwee KA. J Gastroenterol Hepatol. 2018 Mar;33(3):564-575. doi: 10.1111/jgh.13998
  7. “Challenges to diagnostic standardization of Barrett's esophagus in Asia.” Soh YSA, Lee YY, Gotoda T, Sharma P, Ho KY; Asian Barrett's Consortium. Dig Endosc. 2019 Mar 20. doi: 10.1111/den.13402
  8. “A systematic review of the use of rifaximin for Clostridium difficile infections. Ng QX, Loke W, Foo NX, Mo Y, Yeo WS, Soh AYS. Anaerobe. 2019 Feb;55:35-39. doi: 10.1016/j.anaerobe.2018.10.011.
Media Appearances
  1. “Irritable Bowel Syndrome”
    Mediacorp Channel 8, Here's to Health, Season 11 (健康在于你) Episode 3, 27 Aug 2019
  2. “Gastroenteritis”
    Mediacorp Channel 8, Frontline (前线追踪) 30 Nov 2018 02:48 - 03:58
  3. “What makes farts smelly or noisy? And is it safe to hold these in?”
    ChannelNewsAsia, 15 Nov 2019
  4. “Fermented foods like kefir and kombucha have burst onto the health scene, but experts say there is no evidence that probiotics benefit healthy people”
    The Straits Times, 29 Oct 2018
  5. “Pigged out over Chinese New Year? Here's how to help the over-indulgence”
    ChannelNewsAsia, 10 Feb 2019
  6. “Will Kimchi and Kombucha help you live longer?”
    The Straits Times, Features, Life section, 20 Oct 2019
  7. “Bye bye, ice cream and milk tea? Lactose intolerance gets worse with age - here's why”
    ChannelNewsAsia, 14 Sep 2020

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