Dr Khor Shao Nan

Dr. Khor Shao Nan is a General and Colorectal Surgeon who has been a specialist colorectal surgeon with Singapore General Hospital and the National Cancer Centre Singapore since 2021. In 2025, he completed a 1-year fellowship training in advanced minimal invasive colorectal surgery at Seoul St. Mary's Hospital, South Korea. He is currently a Clinical Assistant Professor for the Surgical and Oncology Academic Clinical Programmes at Duke-NUS Medical School. He also holds other academic positions, including SingHealth PGY1 Core Faculty since 2024 and Clinical Senior Lecturer at NUS Medicine, Singapore, since 2022.

He is committed to using the latest techniques and technologies to ensure precise, minimally invasive treatments, helping patients recover quickly and maintain a high quality of life. He has a keen interest in robotic-assisted surgery and has strived to improve clinical and oncological outcomes with the technology. He is well published and shares a strong passion for surgical education.

• Fellow of the Royal College of Surgeons, Edinburgh (2021)
• Master of Medicine, Surgery, Singapore (2020)
• Member of the Royal College of Surgeons, Edinburgh (2018)
• Medical Doctor degree, National University of Malaysia (2011)

• Organising and Scientific Chairman, 2nd SingHealth Colorectal Congress in 2024
• Course Director, Essential Gastrointestinal Anastomosis Masterclass, in 2024
• Committee Member, Society of Colorectal Surgeons (Singapore) since 2021
• Fellow, The Royal College of Surgeons (Edinburgh) since 2021

• Service with a Heart Award (2025)
• SGH 10 Years Long Service Award (2024)
• Covid-19 Resilience Medal (2023)
• Service with a Heart Award (2022)

• Khor, S. N., Jeong, Y. K., & Lee, Y. S. (2025). Single-port robotic anterior resection: technical know-how and tips - A video vignette. Colorectal disease: the official journal of the Association of Coloproctology of Great Britain and Ireland, 27(6), e70147.
• Chew, Y. J., Chin, H. M. S., Khor, S. N., Lim, S. K. J., & Lee, W. Y. (2025). Vaginal Ring Pessary Migration and Embedment With Rectal Prolapse: A Rare Complication of a Forgotten Ring Pessary in an Elderly Patient. Cureus, 17(6), e85187.
• Khor SN, Fu Wan Pei C. Diagnostic and Surgical Dilemmas of Pararectal Masses - A Case Series of Unusual Presentations of Extrauterine Leiomyomas with Review of Literature. Adv Res Gastroentero Hepatol, 2024; 20(4): 556042
• Seow-En I, Khor SN, Koo CH, Wee IJY, Tan EK. Transvaginal Natural Orifice Specimen Extraction (NOSE) in laparoscopic colorectal cancer surgery with new insights on technique and patient selection. Surg Laparosc Endosc Percutan Tech. 2023 Oct 1;33(5):571-575.
• Seow-En, I., Li, K. K., Khor, S. N., & Tan, E. K. (2023). Laparoscopic sigmoid colectomy with transanal natural orifice specimen extraction for sigmoid volvulus - A video vignette. Colorectal disease: the official journal of the Association of Coloproctology of Great Britain and Ireland, 25(8), 1746–1747.
• Khor SN, Seow-En Isaac, Zhao Yun, Ng Yvonne, Tan EKW. Real-Time intelligence-assisted colonoscopy and the effect of endoscopist experience on polyp detection rates at a tertiary center. World Journal of Colorectal Surgery 12(3): 59-64, Jul-Sep 2023
• Seow-En I, Khor SN, Tan KW. Laparoscopic 3-port anterior resection with transvaginal natural orifice specimen extraction (NOSE) in a patient with a high BMI: A video vignette. Colorectal Dis. 2022Nov;24(11):1443-1444.
• Khor, S. N., Cheok, S. H. X., Sultana, R., & Tan, E. K. W. (2023). Incidence of incisional hernia after major colorectal cancer surgery & analysis of associated risk factors in Asian population: Is laparoscopy any better?. Asian journal of surgery, 46(1), 99–104.
• Khor SN, Lei J, Kam JW, Kum S, Tan YK, Tang TY. ClariVein™ - One year results of mechano-chemical ablation for varicose veins in a multi-ethnic Asian population from Singapore. Phlebology. 2018 Dec;33(10):687-694
• Khor SN, Chong SJ, Tan KC. Electric scooter burns and the danger of personal mobility device battery. ANZ J Surg. 2018 Mar;88(3):250
• Teng TY, Khor SN, Kailasam M, Cheah WK, Lau CC. Morning colonoscopies are associated with improved adenoma detection rates. Surg Endosc. 2016 May;30(5):1796-803.