A diagnosis is supposed to bring clarity. But what if the name itself creates confusion?

Polycystic Ovary Syndrome (PCOS), a disorder frequently associated with irregular periods, hormonal imbalance, acne, weight changes, and infertility, has been diagnosed in millions of women worldwide for years. However, despite being one of the most prevalent endocrine illnesses that affect women, experts are arguing that one of the main causes of misconceptions about the ailment may be its name. The World Health Organization (WHO) estimates that 6-13% of women worldwide who are of reproductive age have PCOS, with up to 70% of cases being undiagnosed. ¹

The Lancet consensus paper described the term “PCOS” as “inaccurate, implying pathological ovarian cysts” while simultaneously obscuring the condition’s broader endocrine and metabolic complexity. ² The authors further noted that the terminology contributed to “delayed diagnosis, fragmented care, and stigma”, emphasising that the move toward PMOS was not simply linguistic but an attempt to align medical terminology with modern scientific understanding.

Therefore, the argument over changing PCOS to Polyendocrine Metabolic Ovarian Syndrome (PMOS) goes beyond simple semantics. It represents an important change in the way that medicine views chronic hormonal problems, women’s health, and the value of language in healthcare.

The Problem with the Name “PCOS” 

The term “polycystic ovary syndrome” has been criticised for being medically incomplete and misleading. Despite the name, many individuals diagnosed with PCOS do not actually have ovarian cysts. As highlighted in the Lancet paper, the existing terminology was “inaccurate, implying pathological ovarian cysts” amongst patients who end up associating the diagnosis solely with reproductive or ovarian abnormalities.

PCOS is actually a complex endocrine and metabolic disorder that affects multiple systems within the body. Research has consistently linked it to insulin resistance, increased risk of type 2 diabetes, cardiovascular complications, obesity, sleep disorders, anxiety, depression, and long-term metabolic dysfunction. ³ According to The Lancet consensus, the term “polyendocrine” acknowledges “multiple interacting hormonal disturbances” rather than viewing the condition as an isolated ovarian disorder.

Experts involved in the international renaming initiative have argued that the current terminology places disproportionate emphasis on ovaries while failing to capture the systemic nature of the disorder. ⁴

As Dr Sonali Hargunani, Consultant Obstetrician and Gynaecologist at RxDx Clinics, Whitefield explains,  

“The name itself is a misnomer. It is limited to the word ‘cystic’, which causes a lot of patients to self-diagnose by getting a scan done. If it shows cysts, patients assume they have PCOS and tell the doctor so, and if they don’t have cysts, then they assume they don’t have PCOS, which is not true. PCOS may or may not be there regardless of cysts. A lot of times teenagers, or even older women, only approach a doctor because of body image issues and not due to the other symptoms that indicate PCOS. Correct patient perspective is very important to make sure awareness exists and the diagnosis is taken seriously.” 

Why PMOS? 

The renaming proposal emerged after years of international consultation involving researchers, clinicians, and patient advocacy groups. The newly proposed term, Polyendocrine Metabolic Ovarian Syndrome (PMOS), attempts to better represent the condition’s broader clinical profile. 

The name “polyendocrine” reflects the fact that the disorder impacts multiple hormonal pathways, and “metabolic” describes the most neglected but most important features of the disease: insulin resistance and metabolic derangement.  

According to reports published in 2026, the move aimed to create terminology that is more scientifically accurate and less stigmatising for patients. ⁵ The Lancet article involved over 14,000 patients and healthcare professionals across multiple countries and specialities in the renaming process, making it one of the largest international consensus exercises in women’s health terminology. 

More importantly, many clinicians believe that changing the name could also improve awareness and early diagnosis. 

Dr Sonali Hargunani, Consultant Obstetrician and Gynaecologist at RxDx Clinics, also says: 

“If a name suggests something, then it should be present. Cysts may or may not be present, but PMOS implies multiple systems being affected. It helps the patients understand that the disorder is not just about irregular periods. The name change also makes it easier for the doctors to explain the disorder better. The new term will have more impact on patients in making them take the disorder more seriously and seek help sooner because prolonged delay may lead to other cardiovascular problems or even endometrial cancer in a few cases.”

More Than a Reproductive Disorder

The tag of PCOS has long been criticised for diminishing the disorder to just an issue connected to reproduction. Irregularities in menstruation and infertility are significant parts of the illness, but they only make up a minute portion of the overall health picture. 

In a country like India, where awareness of hormonal health is uneven and diagnosis is frequently delayed, this broader understanding is pertinent. Research carried out in India has revealed an increase in the prevalence of PCOS amongst teenagers and young adults. It is partially due to changes in lifestyle, stress, and rising rates of obesity and insulin resistance. ⁶ 

Yet social stigma continues to shape conversations around the disorder. Many women feel ashamed of symptoms such as acne, weight gain, facial hair growth or infertility. Others recall their symptoms being dismissed for years as normal hormonal issues. ¹ 

The 2023 International Evidence-Based Guideline for the Assessment and Management of PCOS highlighted lifelong metabolic and psychological implications of this condition, including greater risk of depression, anxiety, eating disorders, and cardiovascular diseases. ⁷ 

In this context, advocates argue that terminology matters. Language influences not only public understanding, but also the seriousness with which conditions are treated. 

Can Changing a Name Change Healthcare? 

Medical terminology has evolved throughout history as scientific understanding deepened. Conditions once poorly understood have frequently been renamed to reflect improved knowledge and reduce stigma. Advocates of PMOS argue that this renaming follows a similar trajectory.  
 
Although critics caution that changing terminology alone will not change healthcare outcomes. Access to diagnosis, interdisciplinary treatment, affordability, and awareness remain major barriers for many patients globally.  
 
Still, supporters believe the symbolic importance of the shift should not be underestimated.  
 
A name shapes perception. Perception shapes conversation. And conversation often shapes care.  
 
The transition from PCOS to PMOS may, therefore, represent more than a scientific update; it may signal a growing recognition that women’s health conditions deserve language that reflects their full complexity rather than reducing them to a single organ or symptom.  
 
Perhaps, then, the question is not simply “What’s in a name?” but rather, what has been overlooked because of it?