PMOS: Why PCOS Has Officially Been Renamed
- Gia Stewart
- May 15
- 3 min read
Updated: Jun 23
PCOS (Polycystic Ovary Syndrome) has officially been renamed PMOS — Polyendocrine Metabolic Ovarian Syndrome.
The new name reflects what research has shown for years: this condition affects far more than the ovaries.
Many women with PCOS never actually had ovarian cysts. Instead, they’ve been dealing with symptoms like:
fatigue
insulin resistance
cravings
weight changes
irregular periods
acne
fertility challenges
The term PMOS shifts the focus toward the hormonal and metabolic drivers behind the condition, not just what appears on an ultrasound.
If you’ve been struggling with symptoms like fatigue, cravings or stubborn weight changes, you might also find my articles on Insulin Resistance in Perimenopause, Why Am I Craving Sugar?, Eating for Healthy Hormones and Gut Health & Perimenopause Symptoms helpful.
You can also learn more about how I support women through:
What Does PMOS Mean?
PMOS stands for Polyendocrine Metabolic Ovarian Syndrome.
The updated name recognises that this condition affects the whole body, particularly hormone and metabolic health.
In clinic, I often see women whose biggest struggles are not ovarian cysts at all, but symptoms linked to blood sugar regulation, inflammation, cravings, fatigue and weight changes.
That’s one of the reasons this name change makes much more sense.
Why Was the Name Changed?
One of the biggest issues with the term PCOS was confusion. I’ve worked with many women who were told they couldn’t have PCOS because they didn’t have ovarian cysts. Others assumed the condition only affected fertility.
But research has shown for years that insulin resistance and metabolic dysfunction are major drivers for many women with this condition.
These changes can affect:
energy levels
cravings
inflammation
cholesterol
blood sugar regulation
long-term cardiovascular health
The new term PMOS better reflects the bigger picture of what’s actually happening in the body. If blood sugar issues or cravings are something you struggle with, my blogs on Insulin Resistance in Perimenopause and How to Reduce Cortisol During Perimenopause may also help.
Has the Diagnosis Changed?
Not significantly at this stage. Doctors are still mainly using the Rotterdam Criteria, which means diagnosis is usually based on having 2 out of these 3 signs:
irregular or missing periods
signs of higher androgen hormones, such as acne, facial hair growth or hair thinning
ovaries that appear polycystic on ultrasound
AMH (Anti-Müllerian Hormone) testing is also being used more commonly alongside diagnosis.
Women with PMOS often have higher AMH levels because their ovaries contain a larger number of follicles. In some situations, this may reduce the need for internal ultrasounds.
But AMH alone cannot diagnose PMOS. Doctors still need to look at the full picture, including symptoms, blood tests and cycle history.
Importantly, not all women with PMOS have ovarian cysts, which is one of the biggest reasons experts pushed for the name change.
Common Symptoms of PMOS
Symptoms can vary significantly between women, but some of the most common include:
irregular or absent periods
acne or oily skin
facial hair growth or hair thinning
fatigue
insulin resistance
sugar cravings
weight gain or difficulty losing weight
fertility challenges
bloating and digestive discomfort
mood changes
Some women notice symptoms during adolescence, while others find they become more noticeable during stress, hormonal shifts or when trying to conceive.
PMOS Is About More Than Weight
One of the most common things I hear women being told is: “Just lose weight.” But PMOS is far more complex than body size alone. I work with women of all shapes and sizes experiencing insulin resistance, inflammation, irregular cycles and hormone imbalances.
This is also where many women become overwhelmed online. One person says to cut carbs. Another says to remove dairy. Someone else blames seed oils or promotes expensive supplements. Before long, women become fearful of food and unsure what to trust.
In my experience, most women benefit far more from sustainable habits than extreme restriction.
What Actually Helps?
For most women, improving PMOS symptoms comes back to supporting:
blood sugar balance
hormone regulation
inflammation
sleep and stress management
sustainable eating habits
This often includes:
eating regular meals
including enough protein and fibre
adding healthy fats
moving your body regularly
improving sleep quality
reducing all-or-nothing thinking around food
If you’d like personalised support with PMOS, hormone health or fertility nutrition, you can:
explore my Women’s Health Nutrition Services
learn more about my PCOS Support Services
The Bigger Picture
The move from PCOS to PMOS is more than just a name change. It reflects a better understanding of how closely connected hormones, metabolism and reproductive health really are. Most importantly, I think it validates what many women have felt for years: that this condition affects far more than the ovaries alone.
Comments