For decades, millions of women have been diagnosed with Polycystic Ovary Syndrome (PCOS). Health experts around the world have recently introduced a new name: Polyendocrine Metabolic Ovarian Syndrome (PMOS).
The change aims to better reflect the true nature of this complex condition and the many body systems it affects. Although the name has changed, the condition itself remains the same.
For many years, the name PCOS placed the focus on the ovaries. We now know that this condition involves much more than reproductive health alone. PMOS better reflects the hormonal, metabolic and reproductive factors that contribute to the condition.
Polyendocrine Metabolic Ovarian Syndrome (PMOS) is a hormonal and metabolic condition that affects women during their reproductive years.
It involves disruptions to hormone production, ovulation, metabolism and insulin regulation.
The word “polyendocrine” acknowledges that multiple hormone systems are involved, while “metabolic” highlights the important role metabolism and insulin resistance play in the condition. “Ovarian” remains part of the name because ovarian function can still be affected.
The term “Polycystic Ovary Syndrome” has long been criticised because it can be misleading.
Many women diagnosed with PCOS do not actually have ovarian cysts, and the condition extends far beyond the ovaries. The previous name often caused confusion and failed to reflect the full picture of what women experience.
The new name, PMOS, better reflects:
Experts hope the change will improve awareness, diagnosis, research and treatment options for women worldwide.
PMOS can affect every woman differently. Some women experience only a few symptoms, while others experience multiple signs that significantly impact daily life.
Common symptoms may include:
Irregular Menstrual Cycles
Periods may be infrequent, absent, unpredictable or unusually heavy. Irregular ovulation is one of the most common features of PMOS.
Acne and Oily Skin
Hormonal imbalances can increase oil production and contribute to persistent acne beyond the teenage years.
Excess Facial or Body Hair
Some women develop increased hair growth on the face, chest, abdomen or back due to elevated androgen levels.
Hair Thinning
At the same time, hormonal imbalances may contribute to thinning hair or hair loss on the scalp.
Weight Gain or Difficulty Losing Weight
Many women with PMOS experience insulin resistance, which can make weight management more challenging.
Fertility Challenges
Irregular ovulation may affect fertility. However, many women with PMOS are able to conceive with appropriate support and treatment.
One of the most important aspects of PMOS is insulin resistance.
Insulin is a hormone that helps move glucose from the bloodstream into cells for energy. When the body becomes less responsive to insulin, the pancreas produces more of it. Higher insulin levels can contribute to increased androgen production and may worsen PMOS symptoms.
This connection helps explain why PMOS is now recognised as a metabolic condition as well as a reproductive condition.
Without appropriate management, PMOS may increase the risk of several health concerns later in life, including:
Not every woman with PMOS will develop these conditions, but understanding the risks allows for earlier support and prevention strategies.
There is no single test for PMOS.
Healthcare practitioners typically assess a combination of:
Diagnosis generally involves identifying characteristic features while ruling out other possible causes of symptoms.
Complex multi-system conditions like PMOS require an equally strategic approach that identifies an individual’s constitutional nurture points. By enhancing the performance of these weaker links in the health chain, they elevate overall health via homeostatic balance throughout the body. In the absence of specific targeted support for these genetic themes, they tend to drag the other systems down with them and thus, overall health.
This is the best approach to resolving any complex & chronic condition, providing a way to maintain sustainable results. All personal choices that are made that may have any impact on health & most importantly the resistant issue … in this case, hormone-sensitive immune dysregulation.
The following categories are commonly found with PMOS women. It provides a helpful place to create an appraisal of your own picture to determine if PMOS applies to you & what to look out for.
Supporting Blood Sugar Balance
Insulin Resistance is a recognised symptom of PMOS. The primary driver is often stress-induced elevation of cortisol, which spikes blood glucose … and thus, insulin spiking to manage it. This makes the host vulnerable to eating carbs in response to hypoglycaemic rebound glucose dips that follow within 1-3 hours.
This dynamic applies more intensely with women, due to monthly hormone fluctuations & in particular, peri-menopause. Think of insulin resistance as the ‘middle man’ … any metabolic resistance found anywhere in the body will contribute to demands on insulin performance.
Click here for the: Low Glycaemic Food List
Regular Movement
Think of movement as the ‘icing on the cake’ … you can eat a cake without icing but it’s not really a cake anymore. 80% of your results will come from diet & effectively meeting your stress & recovery needs. Exercise will cover the rest (20%) & really make the results look & feel outstanding! It’s also completely grounding & stress-relieving, as we get out of our heads &/or devices & get back into our bodies. Exercise is an achievement in life & we feel good about ourselves when we keep stay consistent with it.
Managing Stress
Stress is literally… ‘the elephant in the room’. Consider your nervous system like a muscle. It needs tone & recovery. Excessive amounts of cortisol-driven ‘flight or fight’ state will keep the body in a state of hypervigilance & survival. The body can only achieve this by sacrificing resources away from other secondary functions. I like to call them housekeeping functions, things like; immune balance, hormone regulation, vagal digestion, healing & detoxification. All the functions that help the body look after itself & help us feel better rely on us being out of fight-or-flight & spending more time in the opposite parasympathetic … ‘rest & digest’
At this point, it is helpful to consider potential genetic influences that may affect metabolic stress, such as methylation & pyroluria. These are often the hidden factors that explain metabolic resistance to healing & optimal function. It’s often a revealing experience to recognise such a broad array of seemingly unrelated symptoms.
Hormone Balance
Hormones are so potent that they magnify whatever is going on anywhere in the body … good & bad. The primary disruptor of hormone balance is chronic stress. This is because the adrenals, which respond to stress, are part of the same endocrine system as the thyroid, reproductive system, pituitary & hypothalamus. Biologically, chronic stress is a threat to survival, signalling fertility as unsafe.
Hormone levels tested in your blood with your doctor include both bound & unbound hormones together, which only provides a blunt measure of important ratios. The gold-standard hormone test is the Dutch Test, which measures free/active levels in saliva & urine. This test is conducted from home & provides much more detail of different forms of estrogen, progesterone & androgens. It includes a 12hr cortisol graph & estrogen metabolite levels that represent cancer risk.
Click here to access functional hormone testing options
Click here to learn about estrogen metabolism
Click here to understand the connection between histamine & estrogen
The transition from PCOS to PMOS represents more than a simple name change.
It reflects a growing understanding that this condition affects multiple systems throughout the body, not just the ovaries. By recognising the hormonal, metabolic and reproductive aspects together, healthcare providers can take a more comprehensive approach to women’s health.
For women living with PMOS, this change brings greater awareness, improved understanding and hope for more targeted support.
PMOS (Polyendocrine Metabolic Ovarian Syndrome) is the new name for the condition previously known as PCOS. The updated terminology better reflects the complex hormonal and metabolic nature of the condition and acknowledges that it affects far more than ovarian health alone.
Understanding PMOS empowers women to recognise symptoms earlier, seek appropriate support and take proactive steps towards long-term health and wellbeing.
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Kimballe Robyzen is an experienced Naturopath specialising in women’s health, allergies, immune, gut and mental health. Kimballe frequently works with interstate and overseas clients via Skype, Zoom, phone and/or email. Kimballe’s clinical approach is well suited to supporting you by distance, offering access to personalised health care to those challenged by distance and/or time.
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