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Deputy head at St George’s; PCOS UK director and expert in reproductive endocrinology.
To practice medicine in the UK, everyone must be registered with the GMC and hold a valid license. All doctors on our website have their GMC registration verified.
Information on Prof. Helen Mason
Professor Helen Mason is a British reproductive endocrinologist best known for lifelong work on polycystic ovary syndrome (PCOS) and for deputy leadership within Biomedical Sciences at St George’s, University of London.
Education & training: Graduated from Aston University and completed a PhD at Imperial College London before appointment at St George’s, where she was awarded the title Professor of Reproductive Endocrinology.
Roles & affiliations: Executive Director of PCOS UK and scientific adviser to the national patient charity Verity, with extensive public education on PCOS and women’s health.
Clinical & academic interests: Reproductive endocrinology across PCOS, hypothalamic amenorrhoea and endocrine aspects of eating disorders, translating basic science into practical guidance for clinicians and patients.
Research, teaching & outreach: Fellow of the Royal Society of Biology with peer-reviewed publications and widely used talks and resources on PCOS risks, diagnosis and long-term management.
Service & systems: Promotes multidisciplinary, measurement-based PCOS pathways integrating lifestyle, metabolic screening and fertility planning with clear safety-netting.
