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

Effects of Ketogenic Diet (KD) on Metabolic, Endocrine, and Reproductive Outcomes in Overweight/Obese Women With Polycystic Ovary Syndrome (PCOS): A Systematic Review

Polycystic ovary syndrome (PCOS) is a common endocrine disorder frequently complicated by obesity, insulin resistance, and reproductive dysfunction. The ketogenic diet (KD), characterized by very low carbohydrate intake, has emerged as a potential intervention, but its comprehensive short-term effects in this population require synthesis. This systematic review evaluates the impact of KD on metabolic, hormonal, and reproductive outcomes in overweight and obese women with PCOS. Following...

Published on: Thu, 19 Mar 2026 06:00:00 -0400

Authors: Arpita Misra Diha, Md Sadman Sakib Uddin, Kamarun Munira Anha, Fraol Dereje Bekele, Jannatul Naima, Abdulaziz Ahmed Salem Al-Khulaifi, Amina Abdul Nassar, Md Sajidul Huq,

Beyond Metformin: A Review of Non-pharmacological Treatments for Polycystic Ovary Syndrome

Polycystic ovary syndrome (PCOS) affects reproductive-aged women through hereditary, biological, environmental, and lifestyle factors including stress, poor diet, and oxidative stress. This narrative review aims to systematically synthesize evidence on non-pharmacological naturopathic treatments (yoga, hydrotherapy, diet, and acupuncture) for improving insulin sensitivity, reducing obesity, and alleviating PCOS symptoms. While conventional treatments like metformin increase insulin sensitivity...

Published on: Thu, 19 Mar 2026 06:00:00 -0400

Authors: P Indira Lakshmi, Sujatha Kj, Prashanth Shetty,

Gui Shen Wan ameliorates PCOS-like cellular phenotypes by suppressing TNF-alpha-mediated inflammation and restoring the PI3K/Akt signaling pathway

CONCLUSION: These findings suggest that GSW mitigates PCOS-like granulosa cell dysfunction under metabolic stress by suppressing TNF-α-associated inflammatory signaling, thereby relieving inhibition of the PI3K/Akt pathway. Given the in vitro scope and the medicated-serum approach, the results should be interpreted as mechanistic insight rather than direct evidence of clinical efficacy, and they provide a rationale for subsequent in vivo validation.

Published on: Thu, 19 Mar 2026 06:00:00 -0400

Authors: Yan Lu, Lingtong Li, Jia Fang, Wenjuan Ju, Yanfang Yan, Feihua Wu,

Bile acids and gut microbiota: interactions and impacts on polycystic ovary syndrome

Polycystic ovary syndrome (PCOS) is a multifaceted endocrine and metabolic disorder intricately associated with hyperandrogenism (HA), insulin resistance (IR), chronic inflammation, and obesity. The gut microbiota (GM) is considered a mature endocrine organ capable of exerting multiple effects by regulating bile acids (BAs) metabolism. Disruption of GM homeostasis can initiate various pathological processes, including metabolic disorders, endocrine imbalances, low-grade inflammation, and reduced...

Published on: Thu, 19 Mar 2026 06:00:00 -0400

Authors: Haiqing Qian, Jialing Tao, Lingli Shi, Haiyan Sun, Li Yang, Li Juan Cui, Wenting Xu, Lihong Wang,

Unveiling risk factors and developing a predictive nomogram for ectopic pregnancy in polycystic ovary syndrome patients undergoing assisted reproductive technology

CONCLUSION: This study identifies three key predictors of ectopic pregnancy in younger PCOS (<35 year) patients undergoing ART: IVF cycle number, endometrial thickness, and frozen embryo transfer. The developed nomogram provides a validated assessment tool, particularly for younger patients. These findings highlight the need for personalized risk stratification and further research into underlying mechanism.

Published on: Thu, 19 Mar 2026 06:00:00 -0400

Authors: Jie Li, Yang Liu, Tailin Chen, Li Jin,

Nutritional and Metabolic Characteristics of Overweight Women with Polycystic Ovary Syndrome (PCOS): A Case-Control Study

CONCLUSIONS: Women with PCOS exhibit a higher occurrence of cardio-metabolic risk factors and multiple nutritional deficiencies. Early and personalized management is crucial to improve their long-term health outcomes and quality of life.

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

Authors: Kamilia Ounaissa, Sana Khamassi, Taieb Ach, Ramla Mizouri, Amel Gamoudi, Awatef Kacem, Faten Mahjoub, Haifa Abdesselem, Emna Bornaz, Yosra Hasni, Henda Jamoussi, Chiraz Amrouche,

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,

Fuel toxicity-associated spectrum (FTAS): a unifying nomenclature for metabolic disorders

CONCLUSION: The FTAS provides a proposed holistic, pathophysiologically grounded, and destigmatizing lexicon that unifies metabolic conditions. It aligns with modern, metabolism-targeting pharmacotherapies and is hypothesized to transform clinical practice and research by promoting early, integrated intervention, though this requires prospective validation.

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

Authors: Pichakacheri Sureshkumar,

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,

Corneal and lens densitometry in newly diagnosed polycystic ovary syndrome patients: a quantitative analysis using pentacam HR

CONCLUSIONS: Newly diagnosed PCOS patients demonstrate alterations in corneal curvature, anterior chamber depth, and both corneal and lens densitometry parameters compared with healthy controls. These findings suggest that PCOS may affect the microstructural properties of ocular tissues even at an early stage. In particular, increased lens densitometry represents a novel finding and may indicate early subclinical lens changes in young women with PCOS.

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

Authors: Emine Türen Demir, Kübra Gündogan, Ali Osman Gündogan, Naciye Tora, Refik Oltulu,

IL-22/IL-22R signaling attenuates mitochondrial damage in PCOS by modulating granulosa cell lipid metabolism through ETS1

CONCLUSION: Our findings highlight IL-22 as a promising therapeutic candidate for PCOS, acting through the IL-22R1/STAT3/ETS1 pathway to ameliorate mitochondrial dysfunction and lipid metabolic reprogramming in GCs. This study bridges immune signaling with metabolic pathology in PCOS, offering novel avenues for targeted intervention.

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

Authors: Man Luo, Yuanyuan Chen, Hongmei Chen, Yi Wen,

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,