PCOS (Polycystic Ovary Syndrome) is a hormonal condition that disrupts ovulation and the release of eggs from the ovaries. As well as impacting fertility, women with PCOS also experience irregular ovulation and menstruation, obesity and hirsutism, meaning that the condition can, unfortunately, have a significant impact on everyday life, wellbeing and confidence.
As of May 2026, PCOS has a new name. Following a global consensus published in The Lancet, the condition is now Polyendocrine Metabolic Ovarian Syndrome (PMOS).
PMOS Vs PCOS
PCOS and PMOS are exactly the same condition. But, the new name finally reflects what it actually is. PMOS affects 1 in 8 women: more than 170 million worldwide. It disrupts ovulation and fertility, yes, but it’s far more than a reproductive disorder. It’s a complex hormonal and metabolic condition that can affect weight, mood, skin, energy and long-term health.
So, why has PCOS changed to PMOS?
Better awareness. Better accuracy. Better care.
The old name caused real harm. “Polycystic” implies ovarian cysts, but most women with the condition don’t have them. That single misconception led to years of misdiagnosis: symptoms dismissed as heavy periods, blamed on contraception, or written off as “just part of being a woman.” Many were told their ultrasound was normal and sent away.
The new name leads with hormones and recognises the metabolic dimension. The goal is simple: earlier diagnosis, less stigma, better treatment.
“By using language that better captures the full spectrum of symptoms and risks, we can encourage earlier diagnosis, reduce stigma, and empower more people to seek the care and support they need.” – Dr Liz Leek, Marion Gluck Clinic
What is PMOS?
Polyendocrine Metabolic Ovarian Syndrome is a bit of a mouthful, and quite technical. So, let us break it down…
Polyendocrine: Multiple hormone systems are involved, not just reproductive ones.
Metabolic: It affects metabolism, including insulin resistance and raised risk of diabetes and cardiovascular disease.
Ovarian: It impacts the ovaries.
If you’ve been diagnosed and told to simply “put up with it,” that isn’t true. Because PMOS is driven by hormonal imbalance, symptoms can be treated by addressing the underlying hormones.
For more detail about PCOS and the effect the condition has on you, why not read our ‘Advice from a PCOS specialist’ blog.
What are the symptoms of PMOS?
If you think you might have PMOS, your doctor will look for several key signs:
- Irregular or absent periods
- Signs of raised androgens (male hormones)
- Ovarian changes (seen on ultrasound)
- Excess body or facial hair (hirsutism)
- Acne
- Pelvic pain
- Fatigue and low energy
- Mood changes
How do we treat PMOS?
At Marion Gluck Clinic, we treat PMOS through hormonal balancing with oestrogen and progesterone, nutritional advice and lifestyle support.
One of our team takes ownership of your case, monitoring your condition closely with the blood tests and ultrasounds needed to guide your treatment. Everyone is different, so we build a solution around you.
PMOS myth-busting
The name change clears up one big misconception. Here are a few more worth correcting.
- You have to be overweight to have PMOS
Not true. PMOS affects women of every body size – including world-class athletes in peak condition.
- You can’t get pregnant with PMOS
You can. PMOS can affect fertility, but with the right support, infertility is treatable. There are higher risks of complications – hypertension, pre-eclampsia, miscarriage – but a healthy lifestyle and diet can reduce them.
- I will develop diabetes if I have PMOS
PMOS is strongly linked to diabetes, but it’s not always the case that you’ll develop diabetes when diagnosed with PMOS. Women with PMOS are up to four times more likely to develop Type 2 diabetes compared to those without the condition.
You might find that your doctor routinely checks your blood sugar levels and suggests lifestyle changes, like engaging in regular exercise and cutting down on certain foods, to reduce the risk of developing diabetes.
- There’s nothing I can do to improve my PMOS symptoms
There’s a lot you can do. PMOS is chronic with no complete cure, but the hormone imbalances that drive symptoms can be treated:
- Prioritise whole foods
- Avoid sugary food and drink
- Exercise regularly
- Medication, where prescribed by your doctor
How can we help?
Our specialist doctors are experts in treating PMOS. If you’re looking for a diagnosis or guidance on how to ease symptoms, we’re here to help.
To arrange a consultation complete our online booking form form, or call us on 020 7191 2378.
