Catherine Nelson-Piercy


Professor of obstetric medicine and consultant obstetric physician


Catherine Nelson-Piercy trained as a physician, specialising in obstetric medicine. She specialises in the care of women with medical problems in pregnancy. She offers pre-pregnancy counselling for women with pre-existing medical problems and those with problems in previous pregnancies. Catherine runs special joint clinics for women with renal disease, cardiac and rheumatic disorders, hypertension and epilepsy in pregnancy.

She is the immediate past president of the International Society of Obstetric Medicine, editor in chief of the journal 'Obstetric Medicine: the medicine of pregnancy' and has over 200 publications. She has been one of the central assessors for the confidential enquiry into maternal deaths in the UK since 2005 and is a trustee for the charity APEC- Action on Pre-eclampsia.

Education and training

  • Undergraduate studies were at King’s College, Cambridge University and St Bartholomew’s Hospital, London
  • MRCP 1989
  • FRCP 2000
  • FRCOG (ad eundum) 2007

Research interests

  • Venous thromboembolism in pregnancy – Catherine is the lead developer of RCOG Green top guideline on “Reducing the risk of thromboembolism during pregnancy, birth & the puerperium”
  • Hyperemesis gravidarum
  • Renal disease in pregnancy
  • SLE and antiphospholipid syndrome in pregnancy
  • Acute fatty liver in pregnancy


In 2010 Catherine was awarded the title of Professor of Obstetric Medicine at King’s College London.

Last updated: March 2022

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