PMOS: A New Name, A Bigger Picture

For many years, PCOS (Polycystic Ovary Syndrome) has been one of the most commonly diagnosed hormonal conditions affecting women. Yet despite how common it is, many women have felt confused by the name itself. Women keep asking themselves:

• "Do I have cysts on my ovaries?"

• "If I don't have cysts, can I still have PCOS?"

• "Why am I struggling with my weight, skin, mood, or fertility if this is only an ovarian condition?"

And these are questions healthcare professionals hear every day. Now, after years of research and consultation involving thousands of women and healthcare professionals worldwide, PCOS is being renamed. The new name is: Polyendocrine Metabolic Ovarian Syndrome (PMOS).

A more accurate understanding of a condition that affects an estimated one in eight women worldwide.

Why change the name?

The term Polycystic Ovary Syndrome has always been a little misleading. Many women diagnosed with PCOS don't actually have ovarian cysts. What doctors often see on ultrasound are small immature follicles, not true cysts. Yet the name has led many people to believe that cysts are the defining feature of the condition.

In reality it is far more complex than that. PMOS affects much more than the ovaries. It can have a major influence on hormones, metabolism, fertility, mental wellbeing, weight regulation, skin health and long-term health risks. Researchers found that the old name often contributed to:

• Delayed diagnosis

• Confusion among patients and healthcare providers

• Fragmented care

• Increased stigma

• A narrow focus on fertility rather than whole-body health

The new name aims to better clarify what the condition means and what women are experiencing. 

What does PMOS mean? Let's break it down.

Polyendocrine

"Poly" means many, and "endocrine" refers to hormones. And it can cause changes in several hormone systems throughout the body, not just the reproductive hormones. From menstrual cycles, ovulation, mood, energy levels, appetite and more.

Metabolic - This is an important addition

Many women with PMOS experience challenges related to metabolism, including:

• Insulin resistance

• Difficulty managing weight

• Increased risk of Type 2 diabetes

• High cholesterol

• Elevated blood pressure

For years, these metabolic aspects were often overlooked or treated separately rather than as a whole. The new name acknowledges that they are an important factor to the condition.

Ovarian

The ovaries still play an important role in PMOS. Ovulation may be irregular or absent, menstrual cycles can become unpredictable, and fertility may be affected. However, the ovaries are now recognised as just one piece of a much larger puzzle.

More than a fertility condition

One of the most significant shifts behind the new name is recognising that PMOS is not only about fertility. While fertility challenges are common, many women seek help for completely different reasons, such as:

• Acne

• Excess facial or body hair

• Hair thinning

• Irregular periods

• Weight gain

• Fatigue

• Anxiety

• Depression

Some women spend years searching for answers and visiting medical professionals before receiving a diagnosis. By broadening the focus beyond reproduction alone, healthcare professionals hope more women will be identified earlier and receive more comprehensive support.

The emotional side of PMOS

Living with PMOS can be frustrating and many women often feel overlooked and misunderstood when it comes to this condition. They describe feeling as though their bodies are working against them. These symptoms can also lead to a decrease in confidence, self-image and emotional wellbeing. Struggles with fertility just add yet another layer of grief and stress to the condition.

Research also consistently shows higher rates of anxiety and depression among women with PMOS compared to the general population… hence the importance of the name change.

When a condition is better understood, women are more likely to feel seen, heard and supported. A diagnosis should help explain what is happening, not create more confusion.

What does this mean for women currently diagnosed with PCOS?

The most important thing to know is this: Your diagnosis hasn't changed.

The medical community is simply updating the terminology to better reflect current scientific understanding. Over the next few years, healthcare systems, clinical guidelines and educational resources will gradually begin transitioning from PCOS to PMOS.

PMOS and Breastfeeding: Support Matters

For mothers with PMOS, the breastfeeding journey can sometimes come with additional challenges. Because PMOS is closely linked to hormonal and metabolic changes, some women may experience delayed milk production, concerns about milk supply, or difficulties establishing breastfeeding in the early days. However, it is important to remember that having PMOS does not mean you cannot successfully breastfeed. Many mothers with PMOS go on to exclusively breastfeed their babies and enjoy a positive feeding relationship.

The key is early support, realistic expectations, and personalised guidance. Every mother’s experience with PMOS is different, and breastfeeding support should reflect that. This is where the expertise of a Southern African Certified Lactation Consultant (SACLC) can make a meaningful difference. SACLC-trained consultants understand the complex relationship between hormones, metabolism, pregnancy, birth and lactation. They can help mothers identify potential challenges early, develop strategies to protect and build milk supply, assess feeding effectiveness, and provide practical, evidence-based support tailored to each family's needs.

Whether a mother is preparing for breastfeeding during pregnancy, navigating the early days after birth, or working through concerns about milk production, SACLC consultants are equipped to walk alongside her with compassion and professional guidance. Breastfeeding with PMOS may sometimes require extra support, but no mother should feel that she has to navigate the journey alone. With the right information and encouragement, many mothers with PMOS can achieve their breastfeeding goals and provide their babies with all the benefits that breastfeeding offers.

What lies ahead for women diagnosed with PMOS?

Medical knowledge evolves, and sometimes names need to evolve too. The move from PCOS to PMOS represents decades of research and the voices of thousands of women who felt the old name didn't fully tell their story. 

If the new name helps women receive earlier diagnoses, more comprehensive care, and a better understanding of their bodies, then it is far more than a name change. It is a step towards better healthcare and better outcomes for millions of women around the world.

Whether you know it as PCOS or PMOS, one thing remains unchanged: support, education and compassionate care remain at the heart of helping women thrive. ❤️