From PCOS to PMOS: A Rebrand Decades in the Making

PCOS, or Polycystic Ovary Syndrome, was recently renamed to Polyendocrine Metabolic Ovary Syndrome (PMOS). But how much does this name change really accomplish?

The goal of the new terminology is to better reflect the reality of this complex endocrine disorder and the fact that it affects women across different stages of life and involves a wide range of symptoms. It involves far more than just the ovaries or cysts. 

In an effort to address countless missed diagnoses, inadequate treatments, and limited public awareness, more than 50 patient advocacy groups and professional organizations spent 14 years developing the new name for the condition.

Of course, a name change alone won't fix delayed diagnoses, gaps in care, or misinformation overnight. However, advocates hope it will improve awareness, research, diagnosis, and access to more holistic support for the millions of women affected by the condition.

The original name was misleading for several reasons. First, the cysts associated with the disorder are not actually ovarian cysts. Instead, they are small follicles, and there are many women with PMOS who do not have polycystic ovaries at all. Additionally, the name minimizes the condition to what sounds like an ovary-only problem when, in reality, it affects the entire body. PMOS is a hormonal and metabolic disorder that involves the ovaries, not a condition limited to reproductive health.

This misunderstanding has contributed to confusion, delayed diagnoses, and, in some cases, the dismissal of patients' concerns.

So, what does the new name actually mean? Let's break it down:

P – Polyendocrine: The condition affects multiple hormone systems, not just reproductive hormones.

M – Metabolic: Insulin resistance and cardiometabolic health are central features of the condition.

O – Ovarian: The ovaries remain an important part of the syndrome.

S – Syndrome: It is a collection of features and symptoms rather than a single disease with one known cause.

PMOS is not simply a ‘period problem.’ While it can and oftentimes does affect menstrual cycles, it can also affect blood sugar regulation, energy, skin, hair, sleep, mood, mental health, fertility, and long-term cardiovascular and metabolic health.

From excess facial and body hair and weight gain to menstrual irregularities, severe pain and cramping, and infertility, the range of PCOS symptoms is vast. Historically, the term "polycystic ovaries" has led many to associate the condition primarily with ovarian cysts. However, a new name has the potential to better reflect the full spectrum of symptoms and the diverse ways the condition presents, fostering greater understanding of its complexity and impact.

So, what can we expect next? 

For the foreseeable future, PCOS and PMOS will likely be used interchangeably. Experts anticipate a transition period of three years, with updated clinical guidelines expected in 2028. The hope is that this new name will improve diagnosis, stimulate additional research, and encourage more comprehensive, patient-centered care, no longer just a “come back when you're trying to conceive” or an ‘anti-birth control’ approach.

While I know that a new name will not solve everything nor will it do so overnight, I am skeptical that a name change alone can motivate our healthcare system and research efforts to such an extent. I recognize that this is only the first step, but I hope it can create a domino effect in women's health.

Medical terminology shapes how conditions are understood, taught, researched, and prioritized. If the name “PMOS” better reflects the reality of the disorder, it may encourage healthcare providers to look beyond reproductive symptoms, prompt researchers to investigate its metabolic and endocrine impacts more thoroughly, and help patients feel that their experiences are being accurately represented. 

At the moment, nearly 13% of reproductive-aged women are estimated to have PMOS, yet up to 70% of these women likely do not even know they have the condition.

My hope is that news of the PMOS name change spreads widely, leading to greater public awareness and ensuring that more healthcare providers and physicians keep the condition top of mind when treating patients. I also hope that the same experts who advocated for this name change do not lose sight of the larger goal and continue pushing for increased awareness, improved care, expanded research opportunities, and meaningful policy changes that address the longstanding gaps in women's health.

Countless women live with this condition. A name change won't eliminate the challenges associated with it, but it can influence how the condition is studied and treated. PMOS can provide clinicians, researchers, and patients with the language that better reflects the complexity of the condition and helps advocate for the care it deserves.

As we begin to hear the term PMOS more often, let's also take the opportunity to correct common misconceptions. PMOS is no longer PCOS, but it is also not PMS, and it is not simply another ‘women's health issue’ that can be brushed aside. It is a complex, lifelong condition that deserves recognition, understanding, and proper care.