PCOS Gets a New Name — And Experts Say It's Long Overdue
A global rename of PCOS to PMOS signals a major shift in how medicine understands this complex, whole-body condition affecting over 170 million women.
A Long-Overdue Rename for a Misunderstood Condition
A metabolic condition that affects more than 170 million women around the world has been given a new name — and health professionals say the change is a significant step toward better understanding, diagnosis, and treatment.
Polycystic ovary syndrome, long known as PCOS, has officially been renamed polyendocrine metabolic ovarian syndrome (PMOS). The International PCOS Network introduced the new name on 12 May, with the goal of reflecting the condition's true impact on the entire body — not just the ovaries.
Why the Old Name Fell Short
For decades, the term "polycystic ovary syndrome" suggested the condition was primarily an ovarian issue. But medical understanding has evolved considerably, and experts now recognize PCOS/PMOS as a complex, full-body metabolic disorder.
Jessica Pinel, a nutritionist and chair of PCOS Jersey, believes the former name was misleading. "The term PCOS limited the condition to having an effect on women's ovaries, whereas we know that it is a full-body condition," she explained.
Pinel, who was diagnosed with the condition three years ago after spending over £3,000 pursuing answers, works closely with women navigating PCOS/PMOS. She describes the spectrum of symptoms as vast and deeply personal.
"We know that it can be fatigue, hair growth in unwanted places, acne, brain fog, irregular periods, and infertility," she said. "It is that full-body condition with a range of different symptoms, and hopefully the name change allows more women to get support and treatment because the condition affects us in unique ways."
According to the NHS, those living with PCOS/PMOS typically have elevated levels of male hormones and may experience irregular menstrual cycles and weight gain, among other symptoms.
A Condition Rooted in History — and Overlooked for Too Long
PMOS was first identified roughly 70 years ago when two male surgeons — Dr. Irving Stein and Dr. Michael Leventhal — operated on women experiencing absent periods and observed a distinctive appearance in their ovaries. They originally named it Stein-Leventhal Syndrome, which was later changed to PCOS.
Jersey GP Dr. Jessica Langtree-Marsh notes that the historical framing of the condition has contributed to its ongoing mismanagement in clinical settings.
"PCOS is widely overlooked, and we see it as just simply: 'Come back when you want to have a baby and we'll fix it then,'" she said. "Actually, we need to look at this as a lifespan condition."
Dr. Langtree-Marsh describes PCOS/PMOS as "hugely under-researched and hugely misunderstood," stressing that early diagnosis and proper education are essential for patients at every stage of life.
What the New Name Means for Treatment
Beyond semantics, Dr. Langtree-Marsh hopes the rebrand will open the door to more comprehensive treatment approaches. Rather than defaulting to contraceptive pills as the standard response, she envisions a broader toolkit that includes metabolic medications better suited to addressing the condition's underlying mechanisms.
"The rebranded PMOS is trying to appreciate that it affects women more generally rather than just the ovaries — so that it's a whole-body condition," she said. While she acknowledged that the new name "doesn't exactly roll off the tongue," she welcomed the shift away from an ovary-centric definition.
However, she was candid about its limitations: "What it doesn't do, and what we still don't know, is address the core reason why PCOS — or PMOS — actually happens."
Navigating Misinformation and Seeking Proper Support
One of the most pressing concerns surrounding PCOS/PMOS is the spread of misinformation online. In 2024, BBC reporting revealed that social media influencers were actively promoting fake cures for the condition — a troubling trend given how many women turn to platforms like TikTok, Instagram, and Facebook for health guidance.
"We can't just put the onus on the women themselves to seek out that sort of education — there is so much misinformation online," Pinel warned. "We've got to be really, really careful."
She strongly advises anyone who suspects they may have PMOS to consult a qualified healthcare professional rather than rely on social media. She also encourages women to advocate for themselves if they feel unheard.
"In terms of diagnosis, you are always entitled to a second opinion," Pinel said. "I wasn't diagnosed the first few times. If you feel like you're not being seen or heard, please go and seek that second opinion — because you deserve it."
Looking Ahead
The Jersey government has confirmed that a women's health strategy — a requirement under the Government Plan — is set to be published later this year, signaling growing institutional recognition of conditions like PMOS.
For millions of women living with this condition, the name change represents more than a linguistic update. It is a call for the medical community, policymakers, and the public to finally see PCOS/PMOS for what it truly is: a complex, lifelong, whole-body condition that deserves comprehensive care, serious research, and unwavering attention.
