For years, the name Polycystic Ovary Syndrome (PCOS) has caused confusion. Despite what the name suggests, PCOS isn't simply a condition involving ovarian cysts. In fact, you don't need to have polycystic-appearing ovaries to receive a diagnosis.
That's part of the reason an international group of experts proposed a new name in 2026: Polyendocrine Metabolic Ovarian Syndrome (PMOS).
The proposed name better reflects what we already know about the condition.
Why the Name Matters
PCOS affects much more than the ovaries. It's a complex endocrine condition that can involve irregular ovulation, elevated androgens, and metabolic changes, including insulin resistance.
Symptoms can include irregular periods, acne, excess facial or body hair, scalp hair thinning, and difficulty conceiving.
But not every woman experiences the same symptoms.
Some women with PCOS have insulin resistance, while others don't. Some have polycystic-appearing ovaries, while others have normal ultrasound findings. And PCOS can affect women across a wide range of body sizes.
This variability is one reason the condition can be difficult to recognize and diagnose.
What Does PMOS Mean?
The proposed name highlights three important aspects of the condition.
Polyendocrine acknowledges that multiple hormonal pathways are involved, including those regulating androgens and ovulation.
Metabolic recognizes the importance of metabolic health, particularly insulin resistance and the increased risk of type 2 diabetes in some women.
Ovarian reflects the reproductive changes that can occur, including irregular or absent ovulation.
Importantly, this is a proposed change in terminology, not an entirely new diagnosis. PCOS remains the established name in current clinical practice.
What Does This Mean for Women?
A different name won't automatically improve diagnosis or treatment, but I think it's a worthwhile conversation.
Too many women have been told they can't have PCOS because they don't have ovarian cysts or because they don't fit a particular body type.
Neither is a valid reason to dismiss symptoms.
The hope is that more accurate terminology will encourage a broader understanding of the condition and help move conversations beyond ultrasound findings alone.
The Bigger Picture
Whether we call it PCOS or PMOS, the important thing is recognizing that this condition affects women differently.
There isn't one typical presentation, and there shouldn't be a one-size-fits-all approach to care.
A name change won't solve everything, but if it helps women and healthcare professionals better understand the condition, that's a step in the right direction.
