What is PCOS?

What is PCOS?

Despite what the name suggests, Polycystic Ovary Syndrome isn’t just about ovaries—or cysts, for that matter. In fact, many people diagnosed with PCOS don’t have any ovarian cysts at all. Confusing? You’re not alone. The name dates back to how the condition was first described, but science has come a long way since then. Today, we understand that PCOS is really a complex hormonal and metabolic condition that affects far more than reproductive health.

At its core, PCOS is about hormonal imbalance. When key hormones like insulin, androgens (like testosterone), and others are out of sync, they can create a domino effect throughout the body. This hormonal miscommunication can lead to irregular periods, acne, weight changes, hair loss or excess hair growth, difficulty with ovulation or fertility—and that’s just the shortlist. But here’s the thing: PCOS doesn’t follow a single pattern. Some women experience textbook symptoms. Others don’t fit the mold at all. That’s part of what makes PCOS so challenging—and why understanding your unique experience matters.

So, how can the PCOS Association help?

We’re here to offer more than definitions. We’re here to offer direction. Whether you’re newly diagnosed, still searching for answers, or years into your journey and feeling stuck, we’re committed to helping you make sense of PCOS—and make progress.

Here’s what you’ll find at PCOSA:

  • Reliable, science-backed information about what PCOS is (and isn’t)

  • 💬 Supportive communities of people who understand exactly what you’re going through

  • 🧬 Resources for navigating fertility, metabolic health, nutrition, and more

  • 🧠 Education for providers who want to better support their PCOS patients

  • 🙋‍♀️ Advocacy to make sure PCOS is recognized, researched, and respected

No fluff. No fad cures. Just real support, grounded in evidence and compassion.

At PCOSA, we believe every person with PCOS deserves to be informed, empowered, and heard. Wherever you are in your journey, we’re honored to walk with you.

pcos

pcos: Latest results from PubMed

The fortunate amelioration of Costus speciosus on phenotypes of letrozole-induced polycystic ovary syndrome in female rats

Endocrine disruption, infertility, anovulation, impaired cyclicity, and ovarian damage are complications of polycystic ovary syndrome (PCOS). Herein, we explore the potential role of Costus speciosus extract in letrozole-induced polycystic ovary syndrome in female rats. For PCOS induction, letrozole 1.0 mg/kg body weight was given orally for 90 days. Four groups of female rats were randomly assigned. Group 1, the control, was orally administered distilled water. Group 2 received 300 mg/kg Costus...

Published on: Wed, 15 Apr 2026 06:00:00 -0400

Authors: R Elmazoudy, A Alqosaibi, M Alnamshan, I Al-Dhuayan, N F AlAhmady, A Alsayyah, H A Alhawaj,

Lean Polycystic Ovarian Syndrome Has Better Responses toRecombinant Follicle-Stimulating Hormone Compared to ObesePCOS during Ovarian Stimulation for In Vitro Fertilization:A Cross-Sectional Study

CONCLUSION: Individuals within the lean PCOS group exhibited elevated AMH levels and demonstrated a more favorable response to rFSH stimulation. Consequently, the lean PCOS group yielded more retrieved oocytes, while necessitating lower doses of rFSH stimulation compared to the obese PCOS group.

Published on: Wed, 15 Apr 2026 06:00:00 -0400

Authors: Radan Muharam, Yuannita Ika Putri, Muhammad Ikhsan, Edward Christopher Yo, Alisha Nurdya Irzanti, Achmad Kemal Harzif, Mila Maidarti, Budi Wiweko, Andon Hestiantoro, Eva Suarthana, Togas Tulandi,

Comparing Ovulation Outcomes of Letrozole-Tamoxifen-Estradiolwith and without Vitamin E in Infertile Women with PolycysticOvary Syndrome: A Double-Blind, Randomized Clinical Trial

CONCLUSION: The results indicate that the addition of vitamin E to the letrozole-tamoxifen-estradiol protocol might be associated with improved ovulatory outcomes in women with PCOS. Nevertheless, no significant effect on pregnancy rates was observed. These findings highlight the potential adjunctive role of vitamin E in ovulation induction among women with PCOS, although further large-scale randomized trials are needed to confirm its clinical relevance (number registration:...

Published on: Wed, 15 Apr 2026 06:00:00 -0400

Authors: Athar Rasekh Jahromi, Nader Sharifi, Mohamad Karimi Javad, Vahid Rahmanian,

Decoding the association of polycystic ovary syndrome with metabolic-associated fatty liver: insights into CK18 and LC3II/ATG7/P62 autophagy axis and adjunct therapeutics of metformin and levothyroxine

CONCLUSION: metformin and levothyroxine synergistically improve PCOS-related MAFLD by restoring autophagy and metabolic-endocrine balance. System-level and docking analyses support autophagy regulation as a key therapeutic mechanism, highlighting the potential role of levothyroxine in modulating autophagy.

Published on: Wed, 15 Apr 2026 06:00:00 -0400

Authors: Sameeah Mejbel Hamad Algenabi, Anwar Nather Seiwan, Maha Hussein Hashem Sabra, Doaa I Mohamed, Lobna Fouad Abd ElAziz Bassyouni, Dalia Alaa El-Din Aly El-Waseef, Samar F Ezzat, Omnyah A El-Kharashi, Hanaa F Abd El-Kareem, Hyfa A Alzahrani, Fawzyah Obeedallah Albaldi, Ahmed Shokry Elharoun, Mansour Altayyar, Amal Fahmy Dawood, Hebatallah H Abo Nahas, Ahmed Abdel-Salam M Elmelegy,

Hepatokines and polycystic ovary syndrome: investigating the connection between the hepato-ovarian axis and disorders in glycolipid metabolism in PCOS: a narrative review

Polycystic ovary syndrome (PCOS) is a prevalent endocrine and reproductive disorder affecting 11-13% of women worldwide. It is defined by key clinical signs like elevated androgen levels and infrequent ovulation. PCOS, the most common endocrine cause of infertility in women of reproductive age, is often linked to insulin resistance, obesity, and other metabolic issues. It is closely associated with imbalances in the metabolism of glucose and lipids. Crucially, PCOS interacts with disorders of...

Published on: Wed, 15 Apr 2026 06:00:00 -0400

Authors: Rui Zhu, Xinzhe Wang, Jingyun Ma, Xiuwen Shi, Yizhu Zhang, Jing Jin, Huifang Zhou,

Cumulative live birth after unstimulated in vitro maturation versus conventional in vitro fertilization (IVF) in women with polycystic ovary syndrome: a 36-month retrospective matched cohort study

No abstract

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Wei Guo, Lixue Chen, Zi Yang, Linlin Wang, Hongping Wu, Rui Yang, Shuo Yang, Xiaoying Zheng, Hsun-Ming Chang, Xiumei Zhen, Jie Qiao, Rong Li,

Opportunities to improve the care of individuals with polycystic ovary syndrome in Canada: Systematic review

CONCLUSION: The authors propose that expedited diagnosis of PCOS, attending to patients' mental health needs, personalized lifestyle modifications and education, and strategies to promote positive patient experiences may help to improve PCOS care.

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Hayley Patrick, Liam McAlister, Ava Pourtousi, Jasmine Badesha, Selina L Liu, Suhaima Tunio, Kristin K Clemens,

Assessment of body composition, quality of life, and depression in women with polycystic ovary syndrome

CONCLUSION: Based on these findings, we concluded that body composition does not appear to be a determining factor for increased risk of depressive symptoms or poorer perceptions of QoL and HRQoL in women with PCOS.

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Thalita Ponce, Patrícia Dos Santos Vigário, Cloyra de Paiva Almeida, Flávia Lucia Conceição,

Integrated Genomic Analysis Reveals New Diagnostic Biomarkers and Immune Mechanisms for Polycystic Ovary Syndrome

CONCLUSION: The interaction between NETRGs and MRGs forms a "dual-engine" mechanism driving PCOS pathogenesis. This study proposed a novel diagnostic model and therapeutic targets (eg, DNase I and urolithin A), advancing precision medicine for PCOS.

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Ning Huang, LuYun Lou,

Targeting Insulin Resistance Through Nutrition: Pathophysiological Insights and Dietary Interventions

CONCLUSIONS: Dietary pattern selection should be individualized according to metabolic phenotype, comorbidities, and adherence potential. Larger, longer, head-to-head trials measuring hard clinical outcomes are needed.

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Amelia Caretto, Anna Zanardini, Giulio Frontino, Erika Pedone,

Italian Expert Consensus on Women's Nutrition Across the Life Course: A Modified Delphi Study

Objective: Nutrition is a key determinant of women's health across all life stages. Clinical practice remains heterogeneous because of lack of evidence and non-homogeneous guidelines. Despite growing research on micronutrient supplementation, skeptical opinions persist around universal versus individualized approaches, optimal dosages, and life-stage-specific recommendations. Material and methods: This is a modified Delphi process conducted under the supervision of the Italian Association of...

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Laura Sarno, Dario Colacurci, Maurizio Guida, Rossella Elena Nappi, None A G U I,

Expression of Hypoxia-Inducible Factor 1a (HIF-1a), Regulatory T Cells (Treg) and T Helper 17 Cells (Th17) in PCOS Phenotype D Patients from Polish Population

Polycystic ovary syndrome (PCOS) is associated with reproductive, metabolic, and inflammatory disturbances. Alterations in T-cell subpopulations-particularly increased T helper 17 cells (Th17) and decreased regulatory T cells (Treg)-have been reported in PCOS; however, data on normoandrogenic phenotype D remain limited. Hypoxia-inducible factor 1α (HIF-1α), a key regulator of hypoxic response, also influences immune and metabolic processes and may affect the Treg/Th17 balance. To assess Treg and...

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: J Kuliczkowska-Płaksej, D Szymczak, J Halupczok-Żyła, M Strzelec, A Podsiadły, N Słoka, M Bolanowski, B Stachowska, A Zdrojowy-Wełna, A Jawiarczyk-Przybyłowska,

Gut Microorganisms as Markers of Hyperandrogenemia in Premenopausal Women with Polycystic Ovary Syndrome

Previously, the role of decreased biodiversity of gut microbiota in polycystic ovary syndrome (PCOS) was demonstrated, but the objective criteria for assessing the representation of microorganisms associated with hyperandrogenemia (HA) were limited. A total of 175 premenopausal women (26 women with PCOS and HA and 149 women without HA, including 19 healthy controls) were recruited during the Eastern Siberia PCOS Epidemiology and Phenotype (ESPEP) Study (2016-2019). Methods included a...

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Larisa Suturina, Natalia Belkova, Tuyana Sidorova, Nadezhda Smurova, Ilia Igumnov, Lyudmila Lazareva, Irina Danusevich, Iana Nadeliaeva, Leonid Sholokhov, Liliia Belenkaia, Alina Atalyan,

Beyond Glycemic Control: GLP-1RA-Based Therapies and Emerging Targets Beyond the Metabolic Axis

Background/Objectives: Modern diabetes therapy extends beyond glycemic control and increasingly focuses on comprehensive risk reduction to prevent long-term complications, improve quality of life, and reduce premature mortality. Accordingly, modern therapeutic approaches address not only glucose metabolism but also cardiovascular, renal, and metabolic consequences of diabetes. Within this context, glucagon-like peptide-1 receptor agonists (GLP-1 RAs) have emerged as a significant therapeutic...

Published on: Tue, 14 Apr 2026 06:00:00 -0400

Authors: Wojciech Matuszewski, Katarzyna Wołos-Kłosowicz, Paulina Włodarczyk, Patrycja Waśniewska, Robert Modzelewski, Jan Marek Górny, Michał Szklarz, Mikołaj Madeksza, Judyta Juranek,