Dr. Christian Zalai is a double-board-certified (US and Canada) colorectal and general surgeon. In 2012, he obtained his colorectal minimally invasive fellowship training in advanced laparoscopy, trans-anal endoscopic microsurgery, and robotics from Brown University in Rhode Island.

Dr. Zalai completed his undergraduate medical training and general surgical residency at McGill University. He became a fellow of the Royal College of Physicians and Surgeons of Canada in 2011, and after becoming certified by the American Board of Colon and Rectal Surgeons, he became a fellow of the American College of Surgeons in 2012 and the American Society of Colon and Rectal Surgeons in 2017. He is also a fellow of the Society of American Gastrointestinal and Endoscopic Surgeons.

After returning to Montreal in 2012, he joined the Faculty of Medicine at McGill as an Assistant Professor of Surgery in the Department of Surgery. His clinical practice is based out of the Lakeshore General Hospital, a community-based clinical teaching site for medical students, general surgical residents and surgical oncology fellows from McGill University, where he implemented the Enhanced Recovery after Surgery Pathway for colorectal bowel resections in 2015. After developing, implementing, and leading the new Digestion and Metabolism educational curriculum for the 1st year medical students at McGill in 2014, he remains an active lecturer at the undergraduate level.

Dr. Christian Zalai established the West Island Colorectal Clinic in 2018 to provide outstanding, timely, personalized, and expert care for benign and malignant anorectal conditions. His current surgical practice is focused on the minimally invasive treatment of colon and rectal cancer, rectal prolapse, and endoscopic treatment of colorectal polyps (via advanced colonoscopy techniques or transanal endoscopic microsurgery).

His approach is characterized by meticulous attention to detail, ensuring that all treatment plans are thoroughly tailored to meet the unique needs of each individual. Dr. Zalai’s demeanour is one of warmth and approachability, making patients feel at ease even when discussing the most sensitive health concerns.

Career highlights

  • Residency at McGill University
  • Colorectal surgery fellowship at Brown University in Rhode Island
  • Double Board-Certified Colorectal Surgeon in the US and Canada
  • Advanced training in laparoscopic/endoscopic / minimally invasive surgery
  • Assistant Professor of Surgery at McGill University
  • Training residents and medical students
  • Active teacher at the Faculty of Medicine to 1st year medical and dental students


  • McGill University, Montréal, Québec — MDCM, 2004
  • University of Western Ontario, London, Ontario — MSc and BSc (Hons) Microbiology and Immunology, 2000
  • École Normale Supérieure de Lyon — Licence du Magistère en Biologie Moléculaire et Cellulaire, 1996


  • Fellow of the Royal College of Surgeons of Canada (FRCSC)
  • Fellow of the American College of Surgeons (FACS)
  • Fellow of the American Society of Colon and Rectal Surgeons (FASCRS)
  • American Board of Colon & Rectal Surgeons (FABCRS)
  • American Board of Surgery
  • Advanced Trauma Life Support (ATLS) instructor
  • Advanced Cardiac Life Support (ACLS)
  • Fundamentals of Laparoscopic Surgery (FLS)

Medical societies

  • Canadian Association of General Surgeons (CAGS)
  • American Society of Colon & Rectal Surgery (ASCRS)
  • Canadian Society of Colon and Rectal Surgeons (CSCRS)
  • Society of American Gastrointestinal and Endoscopic Surgeons (SAGES)
  • Canadian Medical Association / Québec Medical Association (CMA/QMA)
  • Fédération de Médecins Spécialistes du Québec (FMSQ)
  • Association Québecoise de Chirurgie (AQC)

Friendly, personalized service and expert advice

West Island Colorectal Clinic is your trusted destination for expert care and treatment of rectal and colorectal conditions. Our experienced specialists and state-of-the-art facilities ensure customized solutions for your unique needs. Gain access to compassionate, effective treatment in a judgment-free space.

Struggling with colon or rectal issues?

Let the experts at West Island Colorectal Clinic guide you through personalized diagnostics and treatment options tailored to your needs.

We ensure that every patient feels heard, respected, and cared for and aim to make your journey to better colorectal health a collaborative, supportive, and positive experience.