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Prof Tan Hak Koon of SGH

Assoc Prof Tan Hak Koon


Senior Consultant

Specialty: Obstetrics & Gynaecology

Sub-specialties: Maternal Fetal Medicine

Clinical Appointments

  • Senior Consultant Obstetrics & Gynaecology Singapore General HospitalSingapore General Hospital
  • Chairman (Designate) Obstetrics & Gynaecology KK Women's and Children's HospitalKK Women's and Children's Hospital


Assoc Prof Tan Hak Koon is Senior Consultant with the Department of Obstetrics & Gynaecology, Singapore General Hospital.

Besides general obstetrics and gynaecology, he specializes in high risk pregnancy and as well as ultrasound scans.  He is a Clinical Associate Professor for NUS Yong Loo Lin School of Medicine, as well as Adjunct Associate Professor for Duke-NUS Medical School.


  • ​MBBS
  • FRCOG (UK)
  • M Med (O&G)
  • MRACOG (Aust)
  • FAMS

Professional Appointments and Committee Memberships

  • Adjunct Associate Professor, Duke-NUS Medical School
  • Chief, Section of Fetal Maternal Section (O&G), 2003 - to-date
  • Member, Section of Maternal Fetal Medicine (College of O&G Singapore), 2005 to-date
  • Examiner, MBBS (O&G), National University of Singapore, 1999 - to-date
  • Clinical Senior Lecturer, NUS, 2006 - to-date
  • Examiner, Conjoined MRCOG (O&G) / M.MED Examination, 2006 – 2008
  • Member, Scientific Committee of the 5th Conference of the Asian-Pacific Society of Thrombosis and Hemostasis, 2008
  • Member, Organising Committee of SGH 17th ASM 2008


  • ​Asean Scholarship (Public Service Commission), Singapore
  • SGH Heart of Gold Award, August 2006
  • SGH CEO Service Quality Award, January 2007
  • PS 21 Star Service Award, 2008
  • Asean Scholarship (Public Service Commission), Singapore

Publications and Research Trials

  • Laparoscopic treatment of ectopic pregnancy - A study of 100 cases, HK Tan, SK Tay, Annals Academy Medical Singapore, 1996 ; 25 : 665-7 
  • Case Report - Spontaneous haemoperitoneum from a degenerated fibroid in pregnancy L Wong, HK Tan, Australian New Zealand Journal of O&G, 2000
  • Prevalence of gestation thyrotoxicosis in Asian women evaluated from the 8th to 14th weeks of pregnancy : Correlations with total an human chorionic Gonadotrophin, D Koh, HK Tan, Clinical Endocrinol (Oxf), 2000
  • Pregnancy in women with idiopathic thrombocytopenic purpura, Devendra K, HK Tan, Annals Academy Medical Singapore, May 2002 ; 31(3) : 276-80
  • Pregnancy after renal transplantation : Experience in Singapore General Hospital, HK Tan, PK Tan, AS Tan, Vathsala A, SK Tay, Annals Academy Medical Singapore, May 2002 ; 31(3) : 285-9
  • SLE in pregnancy : Experience of a single Perinatal Centre, LK Tan, CT Lee, HK Tan, SA Tan, Annals Academy Medical Singapore, May 2002 ; 31(3) : 290-5
  • The course of pregnancy in Nail-patella syndrome, HL Chua, LK Tan, HK Tan, L Choon, SA Tan, Annals Academy Medical Singapore, May 2002 ; 31(3) : 349-52
  • Audit of `crash’ emergency caesarean sections due to cord prolapse in terms of response time and perinatal outcome, WC Tan, LK Tan, HK Tan, AS Tan, Annals Academy Medical Singapore, Sept 2002 : 32 (5) : 638-41
  • Outcome of pregnancy in Asian women with systemic lupus erythematosus : Experience of a single perinatal centre in Singapore, LK Tan, HK Tan, Annals Academy Medical Singapore, 2002
  • Gestational diabetes mellitus : A call for systematic tracing, HH Tan, SC Lim, HK Tan, Annals Academy Medical Singapore, 2002
  • The rising caesarean section rate – Where do we go from here?, WC Tan, Devendra K, HK Tan, SGH Proceeding 2003 ; 12 : 208-12
  • Spontaneous hemoperitoneum from uterine leiomyoma in pregnancy : A case report, L Wong, WC Tan, LK Tan, HK Tan, Acta Obstet et Gynecol, Dec 2005 ; 84 (12) : 1208-9
  • Tocolytic treatment for the management of preterm labour – A systematic review, TC Tan, LK Tan, HK Tan, Singapore Medical Journal 2006 ; 47(5) : 361-6
  • Obstetric outcomes in women with end-stage renal failure requiring renal dialysis, LK Tan, Devendra K, HK Tan, L Choong, Int J Gynaecol Obstet 2006 Jul ; 94(1) : 17-22
  • Intrapartum maternal sinus bradycardia with spontaneous resolution following delivery, Devendra K, CK Ching, LK Tan, HK Tan, SL Yu, Singapore Medical Journal 2006 ; 47 : 971-4
  • Lessons learnt from two women with morbidly adherent placentas and a review of literature, EWH Thia, LK Tan, Devendra K, TT Yong, HK Tan, TH Ho, Ann Acad Med Singapore 2007 Apr ; 36(4) : 298-303
  • Ultrasonographical features of morbidly-adherent placentas, EWH Thia, SL Lee, HK Tan, LK Tan, Singapore Medical Journal 2007 Sep ; 48(9) : 799-802, quiz 803
  • Uterine artery impedance of the gravid uterus : Nomograms of pulsatility and resistivity indices, SC Wong, SL Lee, LK Tan, HK Tan, Ultrasound Obstet Gynecol 2007 Oct ; 30(4) : 608
  • Massive postpartum haemorrhage after uterus-conserving surgery in placenta percreta : The danger of the partial placenta percreta, SBL Teo, Devendra K, HK Tan, LK Tan, BJOG 2008 ; 115(6) : 789-92

Research Trials