PCOS is now called PMOS.
This changes everything.
In May 2026, after 11 years and input from 22,000 patients and clinicians worldwide, PCOS was officially renamed PMOS โ Polyendocrine Metabolic Ovarian Syndrome. The condition is the same. What the name finally acknowledges is not. Dr. Alissia Zenhausern-Pfeiffer, NMD, FABNE provides evidence-based, integrative PCOS/PMOS care built around your specific type, your symptoms, and your goals.
"My cycles are regular for the first time in years, and I finally feel in control of my own health."
โ Megan L., Scottsdale, AZPCOS is now PMOS.
Finally, a name that tells the truth.
On May 12, 2026, a landmark paper in The Lancet officially renamed Polycystic Ovary Syndrome to Polyendocrine Metabolic Ovarian Syndrome (PMOS) โ the result of an 11-year global consensus process involving more than 22,000 patients, clinicians, and researchers worldwide, supported by over 50 professional organizations including the Endocrine Society.
This is not a small change. For decades, the name "polycystic ovary syndrome" told an incomplete and often misleading story. It suggested the condition was defined by ovarian cysts โ which many women with PCOS/PMOS don't even have. It reduced a complex, whole-body hormonal and metabolic condition to a description of one ultrasound finding. It kept the conversation narrowly focused on fertility and reproduction, while cardiovascular risk, insulin resistance, metabolic disease, and psychological impact were systematically undertreated or missed entirely.
The new name โ Polyendocrine Metabolic Ovarian Syndrome โ changes that. It names what's actually happening. It demands that PMOS be taken seriously as the complex, lifelong hormonal and metabolic condition it is โ not managed with birth control and dismissed.
Implied the problem was ovarian cysts. Led to dismissal when cysts weren't present. Kept focus narrowly on reproduction. Left cardiovascular and metabolic risk undertreated for decades.
Names the endocrine and metabolic systems involved. Recognizes this as a whole-body, lifelong condition. Demands metabolic screening. Removes the stigma of a "fertility problem" and reframes it as the serious hormonal disorder it is.
"For too long, the name reduced a complex, long-term hormonal disorder to a misunderstanding about cysts and a focus on ovaries. This contributed to missed diagnoses and inadequate treatment."
โ Endocrine Society, May 2026
A note on search: Most people โ and most doctors โ will continue searching for "PCOS" for years to come. Both names refer to the same condition. We use both throughout this page and in our care. Whether you found us looking for PCOS or PMOS, you're in exactly the right place.
PMOS/PCOS is not just a fertility problem.
It's a whole-body condition at every stage of life.
One of the most important things the PMOS rename acknowledges: this condition doesn't begin and end with fertility. It affects women across their entire lives โ from newly diagnosed teenagers to women managing long-term metabolic and cardiovascular risk. We treat the whole journey.
You just found out you have PCOS โ and you have no idea what that means.
Maybe your doctor handed you a prescription for birth control and sent you on your way. Maybe you Googled it and feel overwhelmed by everything you read. You want to understand what's actually happening in your body โ not just mask it. We start here. We explain your labs, identify your PCOS type, and build a plan that makes sense for your life right now.
You're not trying to get pregnant yet โ you just want to feel like yourself.
Irregular cycles. Acne that won't quit. Hair in places you don't want it, and thinning where you do. Weight that shifts despite doing everything right. Mood swings, fatigue, brain fog. These aren't vanity issues โ they are signs of a hormonal and metabolic imbalance that deserves real attention. We address the root cause, not just the symptom list.
You're not ready to get pregnant now โ but you want to protect your future fertility.
PCOS affects ovulation, and ovulation affects your ability to conceive. The earlier you optimize your hormonal health, the better your foundation when you are ready. Starting care now โ regulating your cycle, addressing insulin resistance, improving egg quality โ gives your future self a significant head start.
You're TTC with PCOS and it's more complicated than you expected.
PCOS is one of the most common causes of ovulatory infertility โ but it's also one of the most treatable. We help you understand which phase of your cycle needs support, why ovulation may be irregular or absent, and how to build the hormonal and metabolic conditions that make conception possible. Many of our PCOS patients conceive naturally. For those who need more support, we prepare you for IUI or IVF with protocols designed to minimize risk and maximize response.
You're moving toward IVF and you want to do everything possible to improve your outcome.
Women with PCOS face a specific IVF challenge: high follicle counts increase the risk of ovarian hyperstimulation syndrome (OHSS) while also potentially masking egg quality issues. We work with your REI to optimize your protocol โ reducing inflammation, improving insulin sensitivity, and supporting egg quality in the 90 days before retrieval. We also support FET preparation, addressing the uterine and immune factors that affect implantation.
You had your baby โ but PCOS doesn't go away after pregnancy.
Postpartum hormonal shifts can intensify PCOS symptoms. Insulin resistance may worsen. Thyroid function often changes. Cycles can take months to return โ or return unpredictably. Whether you're planning for another baby or simply want to feel like yourself again after the fourth trimester, we provide continuous care through every season of the PCOS journey.
PMOS has four subtypes.
Your treatment should match yours.
Most PMOS patients receive the same protocol regardless of their type: birth control, metformin, and a referral to a dietician. But PMOS driven by insulin resistance requires a completely different approach than PMOS driven by chronic stress, inflammation, or post-pill hormonal disruption. Dr. Zen identifies your subtype through comprehensive lab testing and builds your protocol around it.
Driven by elevated insulin, which stimulates androgen production and disrupts ovulation. Often associated with weight changes, sugar cravings, skin tags, and acanthosis nigricans. Responds well to targeted nutrition, inositol, berberine, and metabolic support.
Driven by elevated DHEA-S from the adrenal glands rather than the ovaries. Often seen in women with high stress, anxiety, or HPA axis dysregulation. Requires a fundamentally different approach โ adrenal support, stress modulation, and cortisol balancing rather than insulin-focused protocols.
Driven by chronic low-grade inflammation that stimulates androgen production. Often associated with fatigue, headaches, skin issues, and joint pain. An anti-inflammatory protocol โ nutrition, targeted supplementation, and gut health support โ is central to treatment.
Temporary hormonal disruption that occurs after discontinuing hormonal birth control, as the pituitary-ovarian axis recalibrates. Often misdiagnosed as classic PCOS. Typically resolves with targeted support โ but without intervention, it can linger for months or years.
If any of these sound familiar,
you're in the right place.
Treatment that addresses what's
actually driving your PCOS.
We don't manage PCOS with a single protocol. We identify your subtype, order the labs that matter, and build a comprehensive plan around your specific hormonal picture, your metabolic health, and your goals โ whether that's regulating your cycle, conceiving, or simply feeling like yourself again.
Comprehensive lab evaluation
Full hormone panel, fasting insulin and glucose, androgen levels, thyroid, vitamin D, inflammatory markers, and AMH. We look at the full picture โ not just a TSH and a testosterone.
Subtype-specific nutrition
Diet recommendations are tailored to your PCOS type. Insulin-resistant PCOS responds to low-glycemic, anti-inflammatory eating. Adrenal PCOS requires a completely different focus. We don't give everyone the same meal plan.
Evidence-based supplementation
Inositol, NAC, berberine, vitamin D, omega-3s, magnesium โ prescribed in the right forms and doses for your subtype and labs. Not a generic PCOS supplement stack bought online.
Prescription support when needed
Dr. Zen can prescribe Metformin, Letrozole, bioidentical progesterone, and other medications when clinically appropriate โ naturopathic doesn't mean anti-prescription.
Lifestyle & cycle optimization
Stress management, sleep quality, movement type, and cycle tracking tailored to your PCOS type. For women TTC, we layer in timed intercourse guidance and cycle monitoring.
Ongoing monitoring & adjustment
PCOS management isn't a one-time protocol. Labs change, symptoms evolve, goals shift. Your plan evolves with you โ with direct access to Dr. Zen between visits.
What changes when someone
finally takes your PCOS seriously.
"After working with Dr. Zen, my cycles are regular for the first time in years, and I feel more in control of my health."โ Megan L., Scottsdale, AZ
"The natural approach helped me lose weight and reduce my symptoms without harsh medications. I finally have a plan that actually makes sense for my body."โ Alicia R., Phoenix, AZ
"I finally understand what's happening with my body, and I no longer feel dismissed by doctors. My energy has improved, and I'm seeing real progress with my PCOS symptoms."โ Samantha K., Tempe, AZ
"Before Dr. Zen, I felt overwhelmed by the idea that I would never get pregnant. I'd been seen by countless doctors and told IVF was my only option. I finally felt like I was part of my own fertility care โ working with my body instead of against it. Now, after having our son, I tell all my friends to go see her."โ Caroline D.
Dr. Alissia Zenhausern-Pfeiffer,
NMD, FABNE
Dr. Zen is one of a small number of naturopathic doctors nationally who holds the FABNE designation โ Fellow of the American Board of Naturopathic Endocrinology. She specializes in PCOS, thyroid disorders, and hormone-related fertility challenges using an approach that is evidence-based, subtype-specific, and built around your full clinical picture.
Her patients come to her after years of being dismissed, given birth control without explanation, or told their labs are "fine" while feeling anything but. She takes the time to actually investigate โ and the results show in her outcomes.
Before you book.
The name change matters because "polycystic ovary syndrome" was never an accurate description. Many women with PCOS/PMOS don't have ovarian cysts. The condition is fundamentally an endocrine and metabolic disorder โ not primarily a gynecological one. The old name kept clinical focus on fertility while cardiovascular risk, insulin resistance, and metabolic disease went undertreated.
For our patients: nothing about your diagnosis, your care, or your treatment changes. The science was always this way. The name finally caught up.
- Inositol (myo-inositol + D-chiro-inositol, 40:1 ratio) โ particularly for insulin-resistant PCOS
- NAC (N-acetylcysteine) โ supports insulin sensitivity and has fertility-specific evidence
- Berberine โ comparable to Metformin in some studies for insulin resistance
- Vitamin D โ deficiency is extremely common in PCOS and significantly affects outcomes
- Omega-3 fatty acids โ anti-inflammatory and androgen-reducing
- Magnesium โ supports insulin signaling and stress response
You deserve to understand
your body โ all of it.
PCOS doesn't have to mean a lifetime of symptoms, confusion, and being told this is just how it is. A discovery call is where we start โ a real conversation about your specific case, your goals, and what care could look like for you.
