What Is Polyendocrine Metabolic Ovarian Syndrome? PCOS’s New Name

If you’ve come across the term polyendocrine metabolic ovarian syndrome (PMOS) and found yourself wondering what it actually means, you’re definitely not alone. PMOS is the new name for what was previously called polycystic ovary syndrome (PCOS). This change in terminology reflects a much deeper understanding of what’s really going on in a PMOS body.

For a long time, medical professionals thought of the condition mainly as an ovarian issue. Today, we know it’s much more complex than that. PMOS can affect hormones, metabolism, reproductive health, energy levels, and even cognitive functioning, often in ways that are deeply interconnected. 

If you’ve been struggling with irregular periods, fertility challenges, weight changes, chronic fatigue, or other symptoms that seem difficult to explain, PMOS may help connect the dots. In this guide, I’ll walk through what PMOS is, its hallmark symptoms, and the treatment options that can help you feel your best again.

What Is Polyendocrine Metabolic Ovarian Syndrome? PCOS’s New Name

Polyendocrine metabolic ovarian syndrome (PMOS) is a complex condition that affects the endocrine, metabolic, and reproductive systems. If the name sounds unfamiliar, that’s because PMOS is the new name for PCOS. The updated terminology better represents what researchers and healthcare providers now understand: this condition is about much more than ovarian cysts.

Let’s break it down:

Polyendocrine refers to the fact that PMOS affects multiple hormones throughout the body, not just reproductive hormones. While the ovaries play a major role, the condition can also influence insulin regulation, stress hormones, thyroid function, and other endocrine processes.

Metabolic highlights the significant impact PMOS has on metabolism. Many women with PMOS experience insulin resistance, blood sugar dysregulation, weight gain, intense cravings, and a higher risk of conditions like metabolic syndrome and type 2 diabetes.

Ovarian acknowledges the important role the ovaries play in the condition. PMOS can affect ovulation, menstrual cycles, fertility, hormone production, and overall ovarian function.

Syndrome simply means a collection of symptoms and health concerns that tend to occur together rather than a single disease with one specific cause.

Put it all together, and PMOS describes a condition involving interconnected hormonal, metabolic, and reproductive dysfunction. This is why symptoms of PMOS can range from irregular periods and fertility challenges to acne and hair loss. It’s also why successfully managing PMOS often requires addressing multiple root issues rather than focusing on just one symptom.

Want to know more? Here are more facts about PCOS (PMOS).

Are the Ovaries Part of the Endocrine System?

Yes! The ovaries are actually part of both the endocrine and reproductive systems. This is because they play two equally important roles in the body. First, they store, mature, and release eggs as part of the reproductive process. 

But the ovaries do much more than support fertility. They also produce hormones like estrogen, progesterone, and testosterone. That means the ovaries help regulate everything from menstrual cycles and pregnancy to metabolism and bone health. 

Basically, the ovaries are reproductive organs that also function as endocrine glands. This is one reason PMOS affects far more than fertility. When ovarian function becomes disrupted, it can contribute to hormonal imbalances, insulin resistance, and chronic inflammation. These underlying issues can then trigger a long list of symptoms throughout the body, which I’ll cover below:

Symptoms of Polyendocrine Metabolic Ovarian Syndrome

Menstrual and Reproductive Symptoms

• Irregular menstrual cycles
• Missed or infrequent periods
• Heavy or prolonged periods
• Painful periods
• Lack of ovulation (anovulation)
• Fertility challenges
• Difficulty conceiving
• Recurrent miscarriage
• Pelvic pain
• Ovarian cysts
• Reduced libido

Metabolic and Weight-Related Symptoms

• Insulin resistance
• Blood sugar instability
• Prediabetes
• Weight gain
• Difficulty losing weight
• Increased belly fat
• Increased hunger
• Sugar and carbohydrate cravings

Energy and Cognitive Symptoms

• Fatigue and low energy
• Brain fog
• Difficulty concentrating
• Memory issues

Skin and Hair Symptoms

• Acne
• Oily skin
• Skin tags
• Darkened skin patches (acanthosis nigricans)
• Hair thinning or excessive shedding
• Excess facial or body hair growth

Inflammatory and Digestive Symptoms

• Bloating
• Water retention
• Chronic inflammation
• Digestive discomfort
• Headaches or migraines
• Joint or muscle pain

Mood and Mental Health Symptoms

• Mood swings
• Anxiety
• Depression
• Irritability
• Increased stress sensitivity

Sleep and Recovery Symptoms

• Sleep disturbances
• Waking up tired
• Poor exercise recovery

Cardiovascular and Metabolic Health Concerns

• High blood pressure
• Elevated cholesterol
• Elevated triglycerides
• Higher risk of metabolic syndrome
• Increased risk of type 2 diabetes
• Increased risk of cardiovascular disease

Is Polyendocrine Metabolic Ovarian Syndrome the Same as PCOS?

Yes! Polyendocrine metabolic ovarian syndrome (PMOS) is the updated name for PCOS. After 14 years of international collaboration by the medical community, a landmark consensus paper published in The Lancet in 2025 officially recommended renaming PCOS.

This renaming effort was about much more than updating outdated terminology. For years, society and even many doctors oversimplified, dismissed, and misunderstood polycystic ovarian syndrome (PCOS) because the name suggested it was just a reproductive disorder involving ovarian cysts. 

In reality, PMOS is a complex endocrine and metabolic condition that can affect hormones, fertility, insulin sensitivity, inflammation, cardiovascular health, body weight, and so much more. The new name better reflects the true scope of the condition and the challenges faced by the millions of women living with it.

How Is Polyendocrine Metabolic Ovarian Syndrome Diagnosed?

PMOS is a difficult condition to diagnose. There isn’t one test or biomarker that can definitively determine whether you do or do not have PMOS. On top of that, many of the symptoms overlap with other conditions and can vary significantly from person to person.

Instead, healthcare providers typically look at the bigger picture. They evaluate symptoms, medical history, hormone levels, and metabolic markers while also ruling out other possible causes. Because PMOS affects multiple body systems, diagnosis often requires connecting several seemingly unrelated symptoms back to one underlying condition. 

Unfortunately, that process can take months or even years, which is why so many women with PMOS go undiagnosed. So, if you think you have PMOS, keep pushing for answers. To help you advocate for yourself and navigate the diagnostic process, here’s how doctors detect PMOS:

Step 1: Medical History and Symptom Review

The first step is simply discussing your symptoms with your doctor. Make sure you’re thorough and don’t dismiss anything. Tell your doctor everything you’re experiencing, even symptoms that may not seem related. From there, they’ll review your medical history, family history, current medications, existing health conditions, and lifestyle factors that could be contributing to your symptoms. The goal is to identify patterns that may point toward PMOS.

Step 2: Physical Examination

Next comes the physical exam. Don’t worry, this usually isn’t very invasive. Instead, your doctor will look for visible signs commonly associated with PMOS. These can include visual cues like excess body fat around the abdomen, scalp hair thinning, excess facial or body hair growth, acne, skin tags, and darkened skin patches. Not every Cyster experiences all these symptoms, but the presence of several physical signs can help support a PMOS diagnosis.

Step 3: Blood Testing and Hormone Evaluation

If your medical history and physical exam suggest PMOS, lab work is usually the next step. A comprehensive blood panel can provide valuable insight into your hormonal and metabolic health. Your doctor may evaluate reproductive hormones, testosterone levels, blood sugar regulation, insulin levels, cholesterol, thyroid function, and other markers that could help explain your symptoms.

However, just because your labs come back within the “normal range” doesn’t automatically rule out PMOS. Sometimes what’s technically normal for the general population isn’t optimal for your body. Additionally, not every test is sensitive enough to detect subtle imbalances that may still be contributing to significant symptoms. 

So if you strongly suspect PMOS, continue advocating for yourself. And if you decide to pursue private testing, I recommend this blood test from EquiLife. The company and I collaborated to curate this bundle specifically for women with PMOS or those seeking a PMOS diagnosis.

Step 4: Ultrasound and Other Imaging

Remember how PMOS used to be called polycystic ovarian syndrome? That’s because early researchers noticed that some women with the condition had ovaries containing many small follicles. (They looked like cysts, hence the old name.) Today, we know that not every woman with PMOS has polycystic ovaries, which is one reason they’ve renamed the condition.

That said, your doctor may still order a pelvic or transvaginal ultrasound as part of the diagnostic process. Imaging can help identify enlarged ovaries, increased follicle counts, and other changes that may support a PMOS diagnosis. 

In some cases, doctors may also order an MRI, CT scan, or adrenal imaging. This helps rule out conditions such as ovarian tumors, endometriosis, adenomyosis, adrenal disorders, or structural abnormalities of the pelvis.

Step 5: Diagnostic Criteria and Clinical Evaluation

Your healthcare provider will review the complete picture once they gather all the information. Most healthcare providers still use the Rotterdam Criteria to evaluate PMOS (though we hope that changes soon, too.) Under these guidelines, doctors typically diagnose PMOS when at least two of the following are present:

• Irregular or absent ovulation
• Signs of elevated androgens (such as acne, excess hair growth, or scalp hair loss)
• Polycystic ovaries on ultrasound

Rather than relying on a single test, healthcare providers diagnose PMOS through a clinical evaluation that links multiple signs and symptoms to one underlying condition.

Step 6: Ruling Out Other Conditions

PMOS can be mistaken for several other conditions. In fact, part of the diagnostic process involves ruling out other disorders that may cause similar symptoms. This helps ensure your healthcare team reaches the correct diagnosis and develops a treatment plan tailored to your specific needs.

Here are some conditions that can sometimes look like PMOS:

• Hypothyroidism
• Hyperprolactinemia
• Cushing’s Syndrome
• Congenital Adrenal Hyperplasia (CAH)
• Androgen-Secreting Tumors
• Endometriosis
• Uterine Fibroids
• Premature Ovarian Insufficiency (POI)
• Metabolic Syndrome
• Obesity-Related Hormonal and Metabolic Dysfunction
• Type 2 Diabetes

Polyendocrine Metabolic Ovarian Syndrome Management Approaches

If you do some searching online (or have a particularly pessimistic doctor), you may hear that there’s “no cure” for PMOS. I hate that doom-and-gloom mentality. There’s plenty of hope here! While it’s true that there isn’t one medication or procedure that can magically erase PMOS, there are many ways to address the root causes of the condition and experience significant healing.

You may always have that diagnosis in your medical chart. But, with the right management plan, many women dramatically improve their symptoms, and some even become completely symptom-free. The goal isn’t simply to manage symptoms forever. It’s to improve hormonal balance, insulin sensitivity, inflammation, and overall health, so your body can function as it was designed to.

Here are some common management approaches to PMOS:

Traditional Medical Management

When we think of treating or managing most chronic conditions, we usually think of medications. These are often some of the first recommendations doctors make because they align closely with conventional medical approaches. Fortunately, there are several prescription medications that can help manage PMOS symptoms.

Unfortunately, no medication is without potential side effects, and most of these drugs don’t address the root causes of PMOS. Instead, they help manage symptoms while you’re taking them. For many women, stopping the medication can mean symptoms return over time. This is one reason I tend to prefer holistic and natural approaches that focus on creating more lasting change.

Insulin-Sensitizing Medications

If you struggle primarily with metabolic symptoms, doctors will often recommend medications to manage insulin resistance. The most common PMOS prescription is metformin, which helps boost insulin sensitivity and lower blood sugar levels. As your body’s metabolic conditions improve, hormones often balance out, too.

Here’s more on the pros and cons of metformin for PMOS.

Hormonal Birth Control

Hormonal birth control is another popular PMOS medication. These medications can suppress androgen production in the ovaries, which can help with symptoms related to elevated male sex hormones in a PMOS body. (Symptoms like irregular menstrual cycles, acne, and excess hair growth.) The hormonal improvements can also benefit metabolic health since these systems are interconnected and communicate with one another. 

Anti-Androgen Medications

Another way doctors manage elevated male sex hormones with PMOS is with anti-androgen medications like spironolactone. These can be a better option if a Cyster experiences a lot of side effects with birth control or doesn’t want to use contraceptives. Like the pill, anti-androgen medications can help improve acne, excess hair growth, scalp hair thinning, and menstrual irregularity.

Fertility Treatments

If PMOS affects your ability to ovulate or conceive, doctors may recommend fertility treatments. These medications help stimulate ovulation and increase the chances of pregnancy. Depending on your specific situation, treatment may range from simple oral medications to more advanced reproductive technologies. While these approaches can be incredibly helpful for women trying to conceive, they’re designed to support fertility rather than address the root causes of PMOS.

Weight Management Medications

Some doctors may also prescribe weight-management medications, such as semaglutide (Ozempic, Wegovy) or tirzepatide (Mounjaro, Zepbound), to help manage PMOS-related metabolic symptoms. (Usually when weight gain and insulin resistance are major concerns.) 

These medications can help reduce appetite, improve blood sugar regulation, and support weight loss. For some women, that weight loss can lead to improvements in hormones, metabolism, and overall symptom severity. However, these benefits are often most pronounced while actively taking the medication.

Before you consider Ozempic or another weight management medication, read my post “GLP-1 for PCOS: Is It the Right Choice?”

Natural and Lifestyle-Based Support

Natural and lifestyle-based treatments sometimes get a bad rap. Because they’re not medication-based, people often deem them ineffective, unscientific, or even pseudoscientific.

However, there’s nothing hokey or controversial about eating well, sleeping better, and exercising to improve your health. These are proven and well-understood ways to lower insulin resistance, improve hormone balance, and reduce chronic inflammation (all root issues of PMOS).

Unlike many medications, lifestyle changes have the potential to address the underlying factors contributing to the condition rather than simply masking symptoms. That’s not to say they’re always easy. In fact, they’re often much harder than taking a pill. But when done consistently, they can create meaningful improvements in both symptoms and long-term health outcomes.

PMOS-Friendly Nutrition 

What you eat can have a huge impact on your metabolic and endocrine systems. To help address the drivers of all major PMOS symptoms, I recommend Cysters try a gluten- and dairy-free anti-inflammatory diet. By doing so, you can better prioritize lean protein, healthy fats, high-fiber carbohydrates, non-starchy vegetables, low-glycemic fruits, and other nutrient-dense whole foods.

It may sound restrictive, but it’s not! For more details about the diet that’s worked wonders for so many Cysters out there, read how the right foods can help reverse PMOS symptoms. Then, download The Cysterhood app for recipes, resources, and workout plans to help you turn these positive habits into permanent lifestyle changes.

Targeted Supplementation

Even people who are super intentional about what they eat can have nutrient gaps. It’s simply difficult to get everything your body needs from food alone. However, your body relies on vitamins, minerals, and other nutrients to support healthy metabolism, hormone production, insulin sensitivity, and reproductive function.

Research shows that strategic supplements like inositol, berberine, omega-3s, and a high-quality multivitamin can help improve insulin sensitivity and hormone balance. That can significantly improve symptoms over time! In fact, some studies suggest certain natural supplements (like inositol) may be even more effective than medications like metformin for improving specific PMOS-related outcomes.

Strategic Exercise and Movement

It’s no secret that daily movement can have a profound impact on our health (not just our weight). In fact, the right kind of exercise can help improve insulin sensitivity, balance hormones, and lower inflammation. 

For Cysters, I recommend slow-weighted workouts or other meditative exercises. These can support the nervous system, reduce stress, build lean muscle, and improve metabolic health. And that’s all without placing excessive strain on the body!

Sleep Optimization

Sleep is one of the most overlooked tools for managing PMOS. Poor sleep can increase insulin resistance, raise cortisol levels, worsen inflammation, disrupt hunger hormones, and make symptoms harder to manage. 

For that reason, I encourage Cysters to prioritize 7-9 hours of quality sleep each night. I know, it may sound too simple. However, better sleep can have a powerful impact on hormone balance, metabolism, energy levels, cravings, and overall symptom relief.

Holistic and Integrative Therapies

Beyond nutrition, exercise, sleep, and supplementation, some women find additional support through holistic and integrative therapies. These approaches typically work best alongside a strong lifestyle foundation rather than as standalone treatments. 

While the research varies by therapy, many of these practices can support stress management, hormone balance, nervous system regulation, and overall well-being.

Stress Management Techniques

Chronic stress can worsen the root issues of PMOS, including insulin resistance, inflammation, and hormone imbalances. That’s why stress management is an important part of any comprehensive PMOS plan. Consider activities like spending time in nature, journaling, prayer, breathwork, hobbies, and setting healthy boundaries. These can all help lower stress levels and support overall health.

Mind-Body Practices

Mind-body practices help strengthen the connection between physical and emotional health. Activities like yoga, meditation, tai chi, and mindfulness exercises may help lower cortisol levels, improve stress resilience, support better sleep, and promote a greater sense of well-being. Many Cysters find these practices particularly helpful during periods of high stress.

For guidance, listen to the episode of A Cyster & Her Mister “Yoga for PMOS: Benefits & Poses that Can Help.”

Acupuncture

Acupuncture is a traditional Chinese medicine practice that involves placing very thin needles into specific points on the body. Some research suggests acupuncture may support hormone balance, menstrual regularity, stress reduction, and fertility in women with PMOS. While results vary from person to person, lots of women find it really helpful for symptom management. 

Herbal and Botanical Support

Many Cysters use herbs and botanicals for PMOS. Research shows that some can support women’s health, hormone balance, blood sugar regulation, and stress management. Depending on your symptoms, this may include ingredients like spearmint, cinnamon, ginger, turmeric, ashwagandha, or berberine. 

However, some herbs can interact with certain medications and affect hormone levels. It’s always a good idea to discuss herbal supplements with a qualified healthcare provider before adding them to your routine.

Functional and Integrative Medicine Approaches

The truth is, most women with PMOS don’t fit neatly into one treatment category. Some benefit from medications. Others see incredible results through nutrition and lifestyle changes. Many find the best outcomes come from combining multiple approaches. 

Functional and integrative medicine focuses on creating a personalized plan that addresses your unique symptoms, root causes, health history, and goals rather than relying on a one-size-fits-all solution.

PMOS may be complex, but so is your body’s ability to heal when given the right support.

PMOS may be a new name, but for many Cysters, it finally describes what they’ve known all along: this condition affects so much more than the ovaries. By understanding how hormones, metabolism, inflammation, and ovarian function all connect, you can start making choices that support real healing. Keep advocating for answers, keep learning your body, and remember that symptom relief is absolutely possible with the right support.