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

Polycystic ovary syndrome and risk of endometrial hyperplasia and endometrial cancer in women with abnormal uterine bleeding: A systematic review and meta-analysis

Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder and a recognized risk factor for endometrial abnormalities. However, the relationship between PCOS and the development of endometrial hyperplasia (EH) and cancer (EC) in women experiencing abnormal uterine bleeding (AUB) remains inadequately defined. This meta-analysis aimed to assess the association between PCOS and the risk of EH/EC in this demographic. We conducted a systematic search of PubMed, Embase, and Web of Science from...

Published on: Wed, 18 Mar 2026 06:00:00 -0400

Authors: Zhaoping Chu, Jie Li, Fei Tian, Wenfei Wu,

Follicular fluid from women with polycystic ovary syndrome induces granulosa cells metabolic dysfunction that is exacerbated by obesity

CONCLUSION: Granulosa cells depict metabolic dysregulation, with reduced glycolytic activity and impaired mitochondrial function, when exposed to FF from women with PCOS, which is further exacerbated in the presence of obesity. These findings from a pilot hypothesis-generating study suggest that the intrafollicular environment may be associated with granulosa cell metabolic disturbances, which warrant mechanistic studies to establish causality and elucidate the downstream consequences for...

Published on: Wed, 18 Mar 2026 06:00:00 -0400

Authors: Mafalda V Moreira, Bárbara Guerra-Carvalho, David F Carrageta, Daniela Sousa, Raquel Brandão, Carla Leal, Emídio Vale-Fernandes, Anna Ptak, Duarte Pignatelli, Raquel L Bernardino, Mariana P Monteiro,

Network toxicology and single-cell analysis reveal key gene-mediated bisphenol a interference with granulosa cell function in polycystic ovary syndrome

CONCLUSION: BPA exposure disrupts granulosa cell survival in PCOS by driving apoptosis-related molecular reprogramming through key gene regulation, thereby elucidating mechanistic links between environmental pollutants and PCOS progression and highlighting potential molecular targets for intervention.

Published on: Wed, 18 Mar 2026 06:00:00 -0400

Authors: Yan Zhang, Yuan Lin, Xiumei Xiong, Xiujuan Chen, Xiaoqing Liu, Hailong Huang,

Role and mechanism of palmitic acid-regulated palmitoylation modification of SEC63 protein during endoplasmic reticulum stress in human ovarian granulosa tumor cells (KGN)

CONCLUSION: PA induces ER stress and OS in KGN cells and mouse ovarian tissue via palmitoylation modification of SEC63, contributing to PCOS pathogenesis. Lipoic acid and SEC63 modulation may offer therapeutic potential for mitigating PA-induced ovarian dysfunction.

Published on: Wed, 18 Mar 2026 06:00:00 -0400

Authors: Yalan Ma, Zhenzhen Jin, Aijun Yang,

Effects of acupuncture on improving hormonal and metabolic biochemical characteristics in polycystic ovary syndrome

We investigated the effects of electroacupuncture on hormonal and metabolic characteristics in women with obesity-related polycystic ovary syndrome (PCOS). In this randomized controlled study, 120 patients were assigned to either an electroacupuncture group or a sham acupuncture group (60 per group) and treated three times weekly for 16 weeks. Hormonal profiles, metabolic parameters, inflammatory markers, ovarian morphology, and clinical outcomes were evaluated before and after intervention....

Published on: Tue, 17 Mar 2026 06:00:00 -0400

Authors: Chao Shao, Weihua Li, Jing Liang,

Reproductive Effects of Combined PCOS Model and High-Fat Diet: Tracing Inheritance

The objective of this study was to evaluate in mice, the effects of combining a prenatal androgenization-induced polycystic ovary syndrome model with a high-fat diet (HFd), on the reproductive function of the exposed animals (F1), and their inter- and trans-generational descendants (F2 and F3). N/NIH F0 dams were androgenized with dihydrotestosterone (DHT: 250 µg/animal/day) during gestational days 16.5-18.5; control dams received the vehicle (V: Sesame oil). F1 pups received from weaning, a...

Published on: Tue, 17 Mar 2026 06:00:00 -0400

Authors: Pedro Javier Torres, Rocío Maldonado, Pablo Pérez, Nicolás David Ramírez, Eugenia Mercedes Luque, Verónica Inés Cantarelli, Marina Flavia Ponzio, Daniel Castrogiovanni, Silvina Gutiérrez, Mario Perelló, Valeria Paola Carlini, Ana Carolina Martini,

Research hotspots and trends of acupuncture-assisted female reproduction: a bibliometric analysis based on CiteSpace and VOSviewer

CONCLUSION: The development of acupuncture-assisted female reproductive research is relatively fast in China, but its international influence remains insufficient. Furthermore, collaboration among institutions and research teams is lacking. Future efforts should enhance cooperation and communication, improve the quality of clinical evidence, and promote the application of acupuncture in this field.

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Jinjin Jia, Lizheng Wu, Fangli Pei, Cheng Zeng,

L-carnitine improves polycystic ovary syndrome by increasing CYP11A1, estrogen receptor, and decreasing XNIP and VEGF expression

Polycystic ovary syndrome (PCOS) is a reproductive disorder associated with infertility and causes other complications in different parts of the body. Many studies have reported reduced L-carnitine (LC) levels in these patients. The aim of the present study was to investigate the therapeutic effect of LC in an animal model of PCOS induced by estradiol valerate (EV). In this study, 15 adult female Wistar rats were divided into three groups: control group, PCOS group receiving EV (4 mg/kg body...

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Marzieh Lotfishokouh, Tahereh Foroutan,

Nutritional management of an adolescent undergoing bariatric surgery: a case report

This case report describes the nutritional management and long-term outcomes of an adolescent undergoing bariatric surgery. A 13-year-old female patient with morbid obesity complicated by nonalcoholic steatohepatitis (NASH), impaired glucose tolerance (IGT), and polycystic ovary syndrome (PCOS) underwent sleeve gastrectomy in July 2021. The patient achieved significant weight loss, with a total weight loss of 43.3% and a body mass index reduction of 16.6 kg/m2 at 3 years post-surgery, which...

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Yooeun Yoon, Hosun Lee, Soo Min Ahn,

The effectiveness of digital health interventions on anthropometric and healthy behavior in women with polycystic ovarian syndrome: a systematic review with meta-analysis

CONCLUSION: Digital health interventions confer significant short- and medium-term improvements in anthropometric and healthy behavior measures among women with PCOS.

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Hui-Fang Zeng, Zhen Dou, Yi-Nuo Zhang, Chu-Chu Wang, Tian Xia, Jing Xu,

Efficacy and safety of acupuncture-related therapies in improving insulin resistance, reproductive endocrine outcomes, and ovarian morphology in polycystic ovary syndrome: a systematic review and network meta-analysis

CONCLUSION: ARTs may be safe and effective complementary therapies for improving IR, reproductive endocrine outcomes, and ovarian morphology in women with PCOS.

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Zhenping Du, Mamuke Yerebake, Anqi Shi, Shan Zhao, Shutong Li, Yu Wan, Jun Wang, Chaoqun Yan,

Differential cardiometabolic outcomes of leuprolide versus spironolactone in women with polycystic ovary syndrome

CONCLUSION: Leuprolide therapy was associated with improved lipid and hypertension outcomes compared to spironolactone. These findings support leuprolide's potential role in broader metabolic management of PCOS.

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Myles Goliger, Michael Kozlov, Esther Auerbach, Jacob Givoni, Robert Adler, Jeffrey Weiss, Jason Lazar,

Impact of glucose metabolism abnormalities on live birth rate in South-East Asian women with polycystic ovary syndrome

STUDY QUESTION: Is there a difference in live birth rates at 24 months between infertile women with polycystic ovary syndrome (PCOS) who have normal versus abnormal glucose metabolism?

Published on: Mon, 16 Mar 2026 06:00:00 -0400

Authors: Nam T Nguyen, Vu N A Ho, Toan D Pham, Minh H N Nguyen, Duy L Nguyen, Ho L Le, Khanh T Q Le, Luong D Ly, Mai T N Tran, Tuong M Ho, Robert J Norman, Lan N Vuong,