For decades, the term Polycystic Ovary Syndrome (PCOS) has been used to describe one of the most common hormonal conditions affecting women. However, a landmark international consensus published in The Lancet has recommended that PCOS be renamed Polyendocrine Metabolic Ovarian Syndrome (PMOS).
This change reflects a growing understanding that PCOS is far more than an ovarian condition. It is a complex disorder involving multiple hormone systems, metabolism, reproductive health, cardiovascular health, and even mental wellbeing.
If you have been diagnosed with PCOS, or suspect you may have it, here’s what this new name means and why it matters.
Why Has PCOS Been Renamed?
The term “Polycystic Ovary Syndrome” has long been criticised for being misleading because:
- Many women diagnosed with PCOS do not have polycystic ovaries on ultrasound.
- The “cysts” seen on ultrasound are actually immature follicles, not true ovarian cysts.
- Many of the most significant health impacts of PCOS occur outside the ovaries.
The new name, Polyendocrine Metabolic Ovarian Syndrome (PMOS), better reflects the underlying hormonal and metabolic dysfunction that drives the condition. The goal is to improve awareness, diagnosis, treatment, and research by focusing on the whole-body nature of the condition rather than just its reproductive features.
What Does PMOS Mean?
Polyendocrine
“Polyendocrine” refers to the involvement of multiple hormone systems throughout the body. Women with PMOS commonly experience dysfunction involving:
- Insulin
- Testosterone and other androgens
- Ovulation hormones such as LH and FSH
- Appetite-regulating hormones
- Stress hormones
Metabolic
One of the most significant changes is the recognition of the metabolic component of the condition. Research has consistently shown that women with PCOS are more likely to experience:
- Insulin resistance
- Elevated insulin levels
- Blood sugar dysregulation
- Weight gain or difficulty losing weight
- Increased risk of type 2 diabetes
- High cholesterol
- Fatty liver disease
- Increased cardiovascular risk
By including “metabolic” in the name, the condition is recognised as a major metabolic health concern, not simply a reproductive disorder.
Ovarian
While PMOS acknowledges the important role of the ovaries, they are no longer viewed as the sole focus of the condition. Common ovarian and reproductive symptoms include:
- Irregular periods
- Absent ovulation
- Difficulties conceiving
- Reduced fertility
- Increased risk of pregnancy complications
Syndrome
The term syndrome remains because the condition presents differently in every woman. Some women experience:
- Severe acne
- Excess facial or body hair
- Hair thinning
- Weight gain
- Irregular periods
Others may have regular cycles but significant metabolic dysfunction. No two presentations are exactly alike.
PMOS Is More Than a Reproductive Condition
Historically, PCOS was often discussed primarily in relation to fertility and cycle regularity. While fertility challenges remain an important aspect of the condition, research now clearly demonstrates that PMOS affects multiple body systems.
Hormonal Health
Women with PMOS commonly experience:
- Elevated testosterone levels
- Hormonal acne
- Hirsutism (excess hair growth)
- Scalp hair thinning
- Irregular menstrual cycles
Metabolic Health
Insulin resistance is thought to play a central role in many women with PMOS. Elevated insulin can contribute to:
- Increased androgen production
- Weight gain
- Cravings
- Blood sugar instability
- Inflammation
Cardiovascular Health
Women with PMOS may have a higher risk of:
- High cholesterol
- Hypertension
- Cardiovascular disease
- Metabolic syndrome
Mental Health
Research also shows higher rates of:
- Anxiety
- Depression
- Body image concerns
- Reduced quality of life
What Does This Mean for Treatment?
The name change does not currently alter diagnostic criteria. However, it does shift how practitioners think about the condition. Rather than focusing solely on periods and fertility, treatment should consider:
- Blood sugar regulation
- Insulin sensitivity
- Inflammation
- Hormonal balance
- Stress management
- Sleep quality
- Nutrient status
- Long-term metabolic health
As a PMOS naturopath in Sydney, I often work with women to identify the underlying drivers contributing to their symptoms and support a personalised treatment plan that addresses both hormonal and metabolic health.
How Naturopathy Can Support Women With PMOS
Every woman experiences PMOS differently, which is why individualised care is essential. Depending on your presentation, naturopathic support may include:
Nutrition Strategies
- Optimising protein intake
- Improving blood sugar regulation
- Supporting insulin sensitivity
- Reducing inflammation
Lifestyle Support
- Exercise recommendations tailored to your symptoms
- Stress management strategies
- Sleep optimisation
Nutritional and Herbal Medicine
Where appropriate, targeted supplementation and herbal medicine may help support:
- Ovulation
- Hormonal balance
- Insulin sensitivity
- Metabolic health
A comprehensive assessment helps determine which approach is most suitable for your individual circumstances. Learn more and book online here.
Frequently Asked Questions About PMOS (FAQ)
1. What is PMOS?
PMOS stands for Polyendocrine Metabolic Ovarian Syndrome. It is the new recommended name for PCOS and reflects the hormonal, metabolic, and reproductive aspects of the condition.
2. Is PMOS different from PCOS?
PMOS is not a new condition. It is the same condition previously known as PCOS, but the new name better reflects current scientific understanding of its whole-body effects.
3. Why was PCOS renamed?
The term PCOS was considered misleading because many women with the condition do not have ovarian cysts, and the condition affects much more than the ovaries. The new name acknowledges the important hormonal and metabolic features of the condition.
4. Does PMOS affect fertility?
Yes. PMOS can affect ovulation and fertility, but fertility is only one aspect of the condition. It may also impact metabolic, cardiovascular, skin, and mental health.
5. Can a naturopath help with PMOS?
A qualified naturopath can help support women with PMOS through personalised nutrition, lifestyle strategies, and evidence-informed supplementation aimed at improving hormonal balance, metabolic health, and overall wellbeing. Learn more and book online here.
Looking for a PCOS Naturopath in Sydney?
If you’re struggling with irregular cycles, acne, fertility challenges, insulin resistance, or other symptoms associated with PMOS, working with a practitioner who understands both the hormonal and metabolic aspects of the condition can help you create a personalised plan for long-term health.



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