PCOS officially gets a new name - and it's great news

You may have seen it trending on social media or making headlines: PCOS is getting a new name. If you're wondering what this means for you, your diagnosis, your symptoms, or your ongoing care - we've got you covered.

On 12 May 2026, a landmark international announcement officially confirmed the new name for polycystic ovary syndrome. This decision, the result of 11 years of research and consultation with more than 22,000 people worldwide, marks a historic turning point for women living with this condition.⁽¹⁾

In this article, we'll explain why PCOS is changing its name, what "PMOS" actually means, and - most importantly - what this change will (and won't) mean for your care.

What is the new name for PCOS, and what does it mean?

The proposed new name is PMOS - Polyendocrine Metabolic Ovarian Syndrome (in French: SMOP, Syndrome Métabolique Ovarien Polyendocrinien). This name was chosen following a global process coordinated by Monash University in Australia, in partnership with the AE-PCOS Society (the leading international organisation in this field) and 56 professional and patient organisations.

In practical terms, this shift moves the focus away from the ovaries and towards the hormonal system as a whole — and it finally acknowledges that this condition affects far more than fertility. PMOS is a multi-system condition involving metabolism, multiple endocrine glands, the skin, mental health, and reproductive function.

A three-year transition period has been agreed to allow healthcare professionals, institutions, and patients to adopt the new terminology. During this time, both names (PCOS and PMOS) will coexist.

Why dropping "polycystic" matters - the end of a long-standing misconception

If you've had a pelvic ultrasound as part of your PCOS diagnosis, your doctor may have told you that you had "cysts on your ovaries."

What is actually visible on ultrasound in PCOS are immature follicles — small fluid-filled sacs containing eggs that haven't been able to develop and release normally. These are not cysts in the clinical sense (which are fluid-filled cavities that can be pathological).

Researchers have recently confirmed there is no increase in true ovarian cysts among women with this condition.⁽¹⁾ The word "polycystic" has been misleading from the very beginning — and it has had real consequences:

• For patients: many believed they had a disease "of the ovaries" and couldn't understand why they were gaining weight, experiencing skin blemishes, or feeling constantly fatigued.
• For doctors: some dismissed the diagnosis if a patient didn't show a "polycystic" appearance on ultrasound — even when all other criteria were met.
• For research funding: for too long, budgets focused narrowly on reproductive outcomes at the expense of metabolic and cardiovascular health.

Why "PMOS" is more accurate - breaking down the name

Let's look at the new name word by word:

• P for Polyendocrine: "poly" means "multiple", and "endocrine" refers to the glands that produce hormones. Multiple hormonal systems are involved — the ovaries, of course, but also the pancreas (insulin), the adrenal glands (cortisol, DHEA), and sometimes the thyroid.
• M for Metabolic: this is the major addition. The name finally acknowledges the metabolic dimension of the condition: insulin resistance, weight changes, and an increased risk of type 2 diabetes and cardiovascular disease.⁽²⁾
• O for Ovarian: the ovaries remain involved (irregular ovulation, hyperandrogenism), but are no longer presented as the sole focus of the condition.
• S for Syndrome: this keeps the idea of a cluster of signs and symptoms that vary from woman to woman.

The key takeaway: PMOS is a global hormonal condition affecting multiple systems in a cascade. This is why symptoms vary so widely between individuals — and why a holistic approach to management matters.

What impact will this name change have for patients?

Better recognition of the condition

The first expected impact is improved medical and social recognition of the condition. According to the WHO, up to 70% of women affected remain undiagnosed.⁽¹⁾ By recentring the name around the metabolic and endocrine reality of PMOS, we can hope for:

• Earlier diagnoses, without years of medical uncertainty.
• More thorough assessments, not limited to a pelvic ultrasound.
• Genuinely holistic care, covering metabolic, cardiovascular, and mental health.
• Less stigma — particularly around fertility (the word "polycystic" caused unnecessary fear of infertility in many young women).

Your diagnosis stays valid - but your care pathway may improve

If you already have a PCOS diagnosis, there's nothing you need to do: your medical records remain valid, and your diagnosis stands. The Rotterdam diagnostic criteria (updated in 2023 by ESHRE) remain unchanged - you need to meet 2 out of 3 of the following:⁽³⁾

• Irregular or absent ovulation (oligo/anovulation)
• Clinical or biochemical signs of hyperandrogenism (skin blemishes, hirsutism, hair thinning)
• "Polycystic" ovarian morphology on ultrasound, or elevated AMH levels

What changes is the philosophy of care. The new name invites clinicians to look more broadly and request more comprehensive panels, including metabolic testing.

How to make the most of your next GP or specialist appointment

If you'd like to use this moment to review your health management, here are some tests worth discussing with your GP, gynaecologist, or endocrinologist:

• Insulin resistance panel: fasting glucose, fasting insulin, and ideally HOMA-IR (calculated from both).
• Full lipid profile: total cholesterol, HDL, LDL, triglycerides.
• Thyroid panel: TSH, T3, T4, and thyroid antibodies where possible. Hashimoto's thyroiditis is three times more common in women with PMOS.
• Key nutrient levels: vitamin D, iron, zinc, and vitamin B12 — deficiencies are common.
• Androgen panel: total and free testosterone, DHEA-S, SHBG.
• High-sensitivity CRP: to assess potential chronic low-grade inflammation.

👉 What are the PCOS types and how to determine which one you have?

Managing your PMOS day to day

Whatever your PMOS type, lifestyle remains the cornerstone of management. Here are the key principles that can support your symptoms.

Stabilising your blood sugar

As up to 70% of women with PMOS are affected by insulin resistance, stabilising blood sugar is often the most important lever. This involves:

• A low-glycaemic diet (wholegrains, legumes, plenty of vegetables).
• Food sequencing: fibre first → protein and fats → carbohydrates.
• Reducing refined sugars and ultra-processed foods.
• Moving after meals — even a 10-minute walk can help.

👉 For more: Insulin Resistance and PCOS – What’s the Link?

Every woman's PMOS is different. Find out which support is right for you →

Reducing inflammation

Chronic low-grade inflammation is a common thread across all PMOS types. To help manage it:

• Prioritise healthy fats (oily fish, rapeseed oil, linseed oil, nuts and seeds).
• Reduce pro-inflammatory foods (alcohol, ultra-processed foods, refined sugars).
• Look after your gut microbiome (fermented vegetables, varied fibre sources).
• Consider an omega-3 supplement if you don't regularly eat oily fish.

Supporting your ovulation

If you're looking to restore more regular cycles or support your fertility, inositol is a particularly well-studied nutrient. Several studies have shown it may support both insulin sensitivity and follicle maturation.⁽⁴⁾

👉 Read more: PCOS and fertility: understanding and improving your chances

Managing stress

Chronic stress worsens all PMOS types — not just the adrenal subtype. Cortisol and insulin are closely linked: when one rises, the other tends to follow. Some practical steps:

• Aim for 7–8 hours of sleep per night, in a dark room.
• Build in regular gentle movement (yoga, walking, swimming).
• Reduce caffeine, especially after 2pm.
• Get natural light exposure in the morning to help regulate cortisol rhythms.

👉 Further reading: Stress and anxiety: the benefits of magnesium for women's health

We hope this article has helped you make sense of this name change and what it means for you. As always, you're not alone - the SOVA community is here with you every step of the way. 💜

The term "polycystic" has always been misleading — what appears on ultrasound are immature follicles, not true cysts. The new name, PMOS (Polyendocrine Metabolic Ovarian Syndrome), better reflects the reality of the condition: a multi-system hormonal and metabolic syndrome that goes far beyond the ovaries. This change was backed by 56 professional and patient organisations following 11 years of research.

PMOS stands for Polyendocrine Metabolic Ovarian Syndrome. Each word matters: "polyendocrine" acknowledges that multiple hormonal systems are involved (ovaries, pancreas, adrenal glands, thyroid); "metabolic" recognises the insulin resistance and metabolic risks at the heart of the condition; "ovarian" keeps the ovaries in the picture without making them the sole focus; and "syndrome" captures the varied cluster of symptoms women experience.

No. If you already have a PCOS diagnosis, nothing changes for your medical records or your current care plan. The Rotterdam diagnostic criteria (updated by ESHRE in 2023) remain in place. The change is about how the condition is understood and communicated — not about changing who qualifies for a diagnosis.

A three-year transition period has been agreed to allow healthcare professionals and institutions to adopt the new terminology. During this time, both names will coexist. You may find your GP is still using "PCOS" — this is perfectly normal. You can share this article or refer to the AE-PCOS Society announcement to open the conversation.

With the metabolic focus now officially part of the condition's definition, it's worth discussing with your doctor: a fasting insulin and glucose test (to check for insulin resistance), a full lipid profile, thyroid function tests (including antibodies), vitamin D, iron and zinc levels, androgen panel (testosterone, DHEA-S, SHBG), and high-sensitivity CRP for inflammation.

Yes — and the science is clear on this. Lifestyle is the cornerstone of PMOS management, regardless of your specific subtype. Stabilising blood sugar through a low-glycaemic diet, reducing inflammation, managing stress, and supporting sleep can all meaningfully influence your hormonal wellbeing. Nutrients like inositol have also been well-studied for their role in supporting insulin sensitivity and follicle maturation.