‘Unprecedented’ global effort gives new name to polycystic ovary syndrome – and new hope to millions of women
Polycystic ovary syndrome (PCOS) has been renamed polyendocrine metabolic ovarian syndrome (PMOS) following a global campaign. This change aims to better reflect the condition's complexities and improve patient care. The renaming was announced at the European Congress of Endocrinology after extensive collaboration among medical societies and patient groups.

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What happened
After more than a decade of advocacy and consultation, polycystic ovary syndrome (PCOS) has been officially renamed polyendocrine metabolic ovarian syndrome (PMOS). This significant decision was made public at the European Congress of Endocrinology in Prague on May 12, 2026, following extensive collaboration among international medical societies and patient advocacy groups. The new name aims to clarify the condition's multifaceted nature, which affects not only reproductive health but also metabolic processes and the risk of diabetes and cardiovascular diseases. The change was spearheaded by Prof. Helena Teede, the director of Melbourne’s Monash Centre for Health Research & Implementation, who emphasized the misleading implications of the term 'polycystic' in PCOS. Historically, this term has contributed to delayed diagnoses and inadequate care for those affected. The name change is a culmination of years of discussions and research, with significant input from patients who have experienced the challenges of living with PCOS. Many women reported confusion and misdiagnosis due to the previous name, which suggested a focus solely on ovarian cysts. The new designation, PMOS, reflects a broader understanding of the condition as a hormonal disorder that impacts various systems in the body, including metabolic, mental, skin, and reproductive health. This shift in terminology is expected to be fully integrated into international guidelines for managing the condition by 2028, marking a pivotal moment in the recognition and treatment of PMOS. The announcement has been met with optimism from patients and advocates alike, who hope that this change will lead to improved awareness and care for the millions affected by this condition.
Why this matters
This renaming is crucial as it aims to reduce stigma and improve the understanding of PMOS, leading to better healthcare outcomes for millions of women. By addressing the misconceptions associated with PCOS, the new name encourages a more holistic approach to treatment and care. It also highlights the importance of patient voices in shaping medical terminology and practices. The previous name, PCOS, often led to a narrow focus on reproductive issues, overshadowing the metabolic and systemic implications of the condition. With PMOS, healthcare providers are encouraged to consider the full spectrum of symptoms and health risks, including insulin resistance and cardiovascular concerns, which affect the majority of those diagnosed. This shift not only empowers patients but also fosters a more comprehensive understanding among healthcare professionals, ultimately aiming to enhance the quality of care and support available to women living with this condition.
What changed
The renaming of PCOS to PMOS signifies a major shift in how the medical community perceives and addresses the condition. This change is expected to lead to improved diagnostic criteria and treatment protocols that consider the full spectrum of symptoms and health risks associated with PMOS. The involvement of patient perspectives in this process marks a significant step towards more inclusive and responsive healthcare practices. For instance, the new name reflects a consensus that the condition is not merely a reproductive issue but a complex endocrine disorder that requires a multidisciplinary approach to management. This could lead to better training for healthcare providers, ensuring they are equipped to address the various aspects of PMOS, from hormonal imbalances to metabolic health. Additionally, the name change is anticipated to influence research funding and priorities, encouraging studies that explore the broader implications of PMOS and the development of targeted therapies. As the medical community adapts to this new terminology, it is hoped that the stigma surrounding the condition will diminish, leading to more women seeking help and receiving appropriate care.
Bigger picture
The renaming of PCOS to PMOS is part of a broader movement in healthcare to prioritize patient experiences and perspectives in medical nomenclature and treatment approaches. This change reflects an increasing awareness of the complexities of women's health issues and the need for more accurate representations of conditions that affect them. As healthcare systems evolve, the emphasis on patient-centered care is likely to influence future research, funding, and policy decisions, ultimately leading to better health outcomes for women worldwide. The PMOS name change could serve as a model for other conditions that require re-evaluation and rebranding to enhance understanding and care. For example, similar efforts could be applied to conditions like endometriosis or fibromyalgia, which also suffer from misconceptions and inadequate recognition in the medical community. The collaborative effort behind the PMOS renaming underscores the importance of integrating patient voices into healthcare discussions, fostering a culture where patients are seen as partners in their care. This shift could lead to more effective advocacy and support networks, empowering women to take charge of their health and seek the care they deserve. As the medical community begins to embrace this new terminology, it will be essential to monitor its impact on patient care and awareness, ensuring that the change translates into tangible benefits for those affected by PMOS.
History
Polycystic ovary syndrome was first identified in 1935, but its understanding has evolved significantly over the decades. Initially viewed as a primarily gynecological issue, research has revealed its hormonal and metabolic implications, affecting various aspects of health. The term 'polycystic' has long been criticized for its misleading connotations, which have contributed to misdiagnosis and inadequate treatment for many women. The recent push for renaming reflects a growing recognition of the need to align medical terminology with current scientific understanding and patient experiences. This evolution in nomenclature is not just a semantic change; it represents a shift in how the medical community acknowledges and addresses the complexities of women's health. The involvement of patient advocacy groups in this process highlights the importance of listening to those directly affected by the condition, ensuring that their experiences shape the future of healthcare practices and policies.
Looking Towards the Future
As the new name PMOS is integrated into medical guidelines, it will be important to monitor how this change impacts patient care and awareness. Observing the response from healthcare providers and the medical community will provide insights into the effectiveness of this rebranding. Additionally, tracking ongoing advocacy efforts and research developments related to PMOS will be crucial in understanding the long-term implications of this name change. Key indicators to watch will include changes in diagnostic practices, the development of new treatment protocols, and the overall awareness of PMOS among healthcare professionals. Furthermore, the response from patient advocacy groups and the broader community will be essential in gauging the success of this initiative. As more women become informed about PMOS, their experiences and feedback will play a vital role in shaping future healthcare policies and practices, ensuring that the needs of those affected are met with the seriousness and attention they deserve.
Story timeline
Name Change Announcement
The renaming of PCOS to PMOS was announced at the European Congress of Endocrinology.
Global Consultation Initiated
A forum by the US National Institutes of Health recommended renaming PCOS.
Decade of Advocacy
A decade-long effort by patients and medical professionals to address misconceptions about PCOS.
Sources behind this brief
2 total
The Guardian
Original article detailing the renaming of PCOS to PMOS.
The Lancet
Published the announcement regarding the name change.
Further reading on this topic
3 links
World Health Organization
Provides an overview of PCOS, its symptoms, and associated health risks.
Endocrine Society
Offers a scientific statement on the diagnostic criteria and pathophysiology of PCOS.
National Institutes of Health
Details on PCOS, including symptoms, causes, and treatment options.
Context zone
Australia
Context zone
Australia
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‘Unprecedented’ global effort gives new name to polycystic ovary syndrome – and new hope to millions of women
Sydney, Australia