PCOS gets a new name: For years, millions of women living with PCOS have said the name never fully explained what they were actually going through. After more than a decade of global discussion, health experts are proposing a major change that they believe could reshape how the condition is understood and treated.
PCOS renamed
Polycystic ovary syndrome, commonly known as PCOS, may soon be called polyendocrine metabolic ovarian syndrome, or PMOS. Researchers say the new term better reflects the condition’s hormonal and metabolic impact rather than focusing only on the ovaries.
The proposal, published in The Lancet and discussed at the European Congress of Endocrinology in Prague, has sparked strong reactions from doctors, researchers, advocacy groups and patients around the world.
For many women, the proposed change feels long overdue. PCOS affects around 170 million people worldwide and is linked to irregular periods, acne, infertility, excess hair growth, obesity, thinning hair and insulin resistance. Despite how common it is, experts say the condition has often been misunderstood.
Why Is PCOS Being Renamed?
According to the report published in The Lancet, the term “PCOS” is considered misleading because many patients diagnosed with the condition do not actually have ovarian cysts. Researchers argued that the name has contributed to delayed diagnosis, fragmented treatment and stigma for years.
The renaming effort was led by the Androgen Excess and PCOS Society and involved survey responses from more than 14,000 patients and healthcare professionals. Nearly 60 medical, academic and patient organizations across six continents also contributed to the discussions.
Professor Helena Teede, director of Melbourne’s Monash Centre for Health Research & Implementation, said the existing name failed to represent the “multi-system burden that people with this condition have suffered.”
She explained that the word “polycystic” often caused confusion because the structures seen during ultrasounds are not true cysts. “There are no abnormal cysts in PCOS,” Teede said, as per a report by The Guardian.
Instead, experts say the condition is deeply connected to hormonal imbalance, metabolism, insulin resistance and increased risks of diabetes and cardiovascular disease.
What Does The New PMOS Name Mean?
The proposed name — polyendocrine metabolic ovarian syndrome — is designed to highlight the condition’s broader effects on the body.
Teede said the new terminology moves attention away from cysts and toward the endocrine and metabolic systems that are heavily involved in the disorder.
Research over the years has shown that hormones such as insulin and androgens play a major role in the condition. Women with PCOS can experience elevated androgen levels, which may contribute to acne, excessive hair growth and menstrual irregularities, as per a report by The Guardian.
The Guardian spoke with women who described years of confusion after being diagnosed. Sydney resident Maddy Mavrikis said she “never had – and still don’t have – cysts on my ovaries,” despite being diagnosed at 15.
She recalled being told early on that she would “probably never have children,” something she later learned was not necessarily true.
Mavrikis also described frustration with how treatment often focused narrowly on medication while broader lifestyle management was overlooked, as per a report by The Guardian. “Changing the name, for me, shows that they are starting to pay attention to it,” she said.
Why Are Some Groups Opposing The Change?
Not everyone supports the proposed shift to PMOS. The National Polycystic Ovary Syndrome Association acknowledged the effort was made “in the spirit of what is right and what is best for the people who live with it,” but stopped short of endorsing the new terminology.
Some advocacy leaders worry the transition could disrupt support systems, medical records, awareness campaigns and patient communities that have spent decades building recognition around the name PCOS.
Sasha Ottey, executive director of PCOS Challenge, said, “A change of this scale carries real risks across the ecosystem, and many of those risks have not been adequately assessed, openly disclosed, or weighed against the infrastructure people rely on. This process did not adequately meet that standard," as per a report by 10 WBNS.
Researchers behind the proposal insist patient voices played a major role throughout the process. According to Teede, women living with the condition pushed hardest for the change after years of feeling misunderstood by healthcare systems.
The updated terminology is expected to be gradually introduced before becoming fully incorporated into international guidelines in 2028.
For many patients, the debate is about more than just a name. It is about finally having a condition understood as something that affects the entire body — not only the ovaries.
FAQs
Why do experts want to rename PCOS?
Researchers say the current name focuses too heavily on ovarian cysts instead of the condition’s broader hormonal and metabolic effects.
What would the new name be?
Experts are proposing “polyendocrine metabolic ovarian syndrome,” shortened to PMOS.
