PCOS has a new name - PMOS. Here's what every woman with this condition needs to know

It is not every day we see a genuine step forward in women's health. For a long time this space has been frustratingly SLOW, with conditions either left unexplained for decades or managed using research that was never designed with women in mind. We have long been treated as smaller versions of men, our hormones an afterthought, our symptoms something to suppress rather than understand.

So when something actually changes, it is worth paying attention. With all that being said…..polycystic ovary syndrome has a new name and practitioners world over rejoice.

if you have polycystic ovary syndrome or you've been told you might, you've probably spent years trying to understand what this actually means for you. Its a condition that has felt poorly explained, poorly diagnosed, and poorly treated. A name that pointed to cysts that weren't really cysts. Symptoms that spanned your hormones, your weight, your skin, your mood, your periods and a medical system that often treated each one in isolation.

In May 2026, that officially changed. This is epic news. After 14 years of global collaboration between researchers, clinicians, and patient advocacy groups, PCOS has been renamed. It is now called polyendocrine metabolic ovarian syndrome or for short PMOS. The change was published in The Lancet, one of the world's most respected medical journals, and it represents the most significant shift in how this condition is understood and communicated in nearly a century.

To help, I wanted to cover all of the things: why the name changed, what PMOS actually is, the four functional types, why most women go undiagnosed or undertreated, and what a naturopathic approach to PMOS looks like. If you've ever felt dismissed, confused, or like you're just being handed the pill and sent on your way this one is for you.

Why PCOS was renamed to PMOS

The term polycystic ovary syndrome has been used since 1935. For nearly 90 years, it implied that the defining feature of this condition was ovarian cysts. That was wrong, and that single inaccuracy has had enormous consequences for millions of women.

The issue here is those "cysts" visible on ultrasound are not cysts at all. They are follicles, small normal structures that contain eggs. Every woman has them. Having more follicles visible on an ultrasound does not mean you have PMOS. And having a normal ultrasound does not mean you don't. PCOS cannot be diagnosed or ruled out by ultrasound. Full stop. Yet I have had SO many clients on zoom tell me they have PCOS because of this. When I ask further questions about their diagnosis it lacks depth. This has left a number of my clients walking around thinking they have something they don’t which can have such negative impact on mental health especially if she was also been told she may struggle to have children because of PCOS. Wild.

The actual defining feature of this condition is androgen excess. Elevated male hormones, once all other causes have been ruled out. That excess is what drives the symptoms most women actually experience: the irregular periods, the acne, the hair loss, the facial hair, the difficulty losing weight. Not cysts.

The old name also anchored the condition in a purely gynaecological framing, which meant the metabolic, cardiovascular, psychological, and dermatological dimensions were constantly overlooked. The new name, polyendocrine metabolic ovarian syndrome, was chosen deliberately, word by word. Polyendocrine, because this condition involves multiple interacting hormonal systems, not just the ovaries. Metabolic, because insulin resistance, blood sugar dysregulation, and increased cardiovascular risk are core features, not side effects. Ovarian, because ovulatory dysfunction and fertility challenges remain central to the picture.

This wasn't a rebrand. It was a rigorous, decade-long process involving over 14,000 people with the condition and healthcare professionals from every region of the world. Fifty-six leading clinical, academic, and patient organisations signed on.

What PMOS actually is

PMOS affects one in eight women. More than 170 million people worldwide. It typically becomes apparent in early adulthood or around puberty, which creates its own complexity because some features of normal adolescent development overlap with PMOS signs and symptoms.

What makes it so difficult to navigate is that it genuinely presents differently in different people. For some women it shows up primarily as a metabolic condition: weight gain, fatigue, blood sugar crashes, difficulty losing weight despite every effort. For others it is primarily hormonal: irregular or absent periods, fertility challenges, acne along the jaw, unwanted facial hair. For others it is driven by stress, chronic inflammation, or the aftermath of coming off hormonal contraception.

One label, one ultrasound, one prescription has never been good enough for this condition. That is exactly what the rename is trying to fix.

The four functional types of PMOS

This is where naturopathic medicine has always worked differently. Rather than treating PMOS as a single entity, the functional approach asks what is actually driving the androgen excess in this person. That question changes everything about how you treat it.

The four functional types are insulin-resistant PMOS, post-pill PMOS, inflammatory PMOS, and adrenal PMOS.

Insulin-resistant PMOS is the most common, affecting around 70% of cases. High insulin drives the ovaries to produce excess androgens, with blood sugar dysregulation at the centre of everything. This type is associated with weight gain, carbohydrate sensitivity, energy crashes after meals, and fat that simply will not shift. Critically, insulin resistance can be present even when fasting blood glucose looks completely normal on a standard test. Testing fasting insulin, triglycerides, and ALT gives a far more accurate picture. This is one of the reasons so many women go undetected for years.

Inflammatory PMOS is driven by chronic low-grade inflammation that disrupts ovarian function and hormone signalling. Signs include headaches, joint pain, unexplained fatigue, skin issues, and bowel problems alongside the hormonal picture. Gut health, food sensitivities, environmental toxin exposure, and immune dysregulation all contribute. Treating the hormones without addressing the inflammation rarely produces lasting results.

Adrenal PMOS is different in one important way: the excess androgens are coming from the adrenal glands, not the ovaries. It is strongly linked to chronic stress and dysregulation of the HPA axis. When your stress response system is under prolonged demand, it can drive elevated DHEA-S, an adrenal androgen, which creates the same symptomatic picture as other types but from a completely different root. Normal insulin levels, high DHEA-S on testing, symptoms that worsen during or after periods of significant stress, fatigue, anxiety, disrupted sleep. The ovaries may look entirely normal on ultrasound. Nervous system support is not optional here, it is the foundation of treatment.

Post-pill PMOS is often temporary, though it rarely feels that way when you're in it. When you stop hormonal contraception, particularly the pill, androgens can surge as the body recalibrates. This can look identical to classic PMOS on testing. The difference is that with the right support it tends to resolve over time. It can also unmask an underlying tendency toward PMOS that the pill was suppressing all along.

These types are not always mutually exclusive. Many women will have elements of more than one. But identifying the primary driver changes the whole treatment picture.

Why so many women go undiagnosed or undertreated

This is something I see in clinic constantly. Women who have been told they are fine because their ultrasound looked normal. Women who have been diagnosed because their ultrasound showed multiple follicles, but who were never tested for androgen excess, which means they may not actually have PMOS at all. Women who were handed a prescription for the pill or metformin and sent on their way with no real explanation and no investigation into what was driving their symptoms.

The pill is not a treatment for PMOS. It suppresses the hormonal system that produces androgens, which reduces symptoms while you are taking it. But it does not address the underlying cause. When you stop taking it, the symptoms return. That is not your failure. That is a failure of the treatment model.

The renaming matters because it changes what gets investigated, what gets funded, how the condition is coded in medical systems, and how it is taught in medical schools. Those things shape what doctors look for and what they offer. They take time to shift, but the shift has begun.

What a naturopathic approach to PMOS looks like

Functional medicine and naturopathic medicine have been treating PMOS as a whole-body endocrine and metabolic condition for years. Looking at insulin, the adrenals, thyroid function, inflammation, and androgen metabolism together rather than in isolation. That is not a new idea in integrative practice. It is simply how good assessment works.

In practice it starts with a thorough history and targeted testing. Not just a basic hormone panel, but a look at fasting insulin, inflammatory markers, adrenal androgens, thyroid function, and nutrient status, because deficiencies in zinc, magnesium, vitamin D, and B vitamins are common in PMOS and they compound the hormonal picture significantly.

It means asking what is driving the androgen excess, not just confirming it exists. The dietary approach for insulin-resistant PMOS looks different from the approach for adrenal PMOS. Blood sugar stability, adequate protein, and reduced glycaemic load are central for the metabolic types. Genuine nervous system regulation and stress load reduction are central for adrenal PMOS. Anti-inflammatory nutrition and gut healing take priority in the inflammatory type.

Supplementation can be targeted specifically to each type. Inositol, berberine, and magnesium have good evidence for insulin-resistant PMOS. Zinc and vitex can support androgen metabolism and ovulatory rhythm across types. Adaptogenic herbs can help buffer adrenal androgen output, though they work best when the underlying stress load is genuinely being addressed, not just covered over.

And perhaps most importantly, this approach is not about perfection or doing everything at once. It is about understanding what your body is actually trying to tell you, and working with it rather than silencing it.

Metabolic Balance is one of the tools I reach for most with PMOS, particularly the insulin-resistant type. It is a personalised nutrition program built around your individual blood results, not a generic low carb plan or a one-size-fits-all hormone diet. Every meal and every eating window is designed to bring insulin down and keep it steady. And when insulin comes down, androgen production follows. Cycles regulate. Skin clears. The weight that has resisted everything else starts to shift. What I love most and what I know my clients love most about it is that it cuts through the noise and reduces all of that conflicting advice bombarding you on every corner of the internet.

What the rename means for you

The rename does not change your experience overnight. Your symptoms are the same. The gaps in the healthcare system are still real. Many GPs will take time to update their approach.

But it matters that the medical world has finally caught up with what so many women have been saying for decades. You are not someone with a problem with your ovaries who also happens to have a few other symptoms. You have a complex, whole-body hormonal and metabolic condition. You deserve a healthcare approach that treats it that way.

If you have been diagnosed with PMOS or PCOS, or you suspect you might have it, and you are tired of being handed a pill and sent home, I would love to help you get some real answers. You can book a free discovery call HERE to find out whether working together is the right next step for you. And if Metabolic Balance peaked your interest, you can find out more HERE.

Carolyn Allen is a naturopath and yoga therapist specialising in women's hormonal health in perimenopause and beyond. She works with women across Australia via online consultations from her practice in Maleny, Queensland. To enquire about hormone testing, results interpretation, and personalised support, visit carolynallenhealth.com or email hello@carolynallenhealth.com