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

Hypoxic and Fe-Responses are Regulated by the ERFVII Factors and the PCO Branch of the N-Degron Pathway According to Iron Availability

In plants, iron homeostasis and oxygen metabolism are strictly related, indeed several Fe-requiring enzymes catalyze reactions that also involve O(2) as a reagent, product, entry or end point of the pathway. Oxygen sensing itself relies on the Fe-dependent enzymes Plant cysteine oxidases. However, the impact of iron deficiencies on the response to hypoxic stresses has not been investigated so far. PCOs channel the ERFVII ethylene-responsive factors into a proteasomal N-degron pathway that...

Published on: Sun, 08 Mar 2026 06:00:00 -0400

Authors: Yuri Telara, Moez Maghrebi, Mikel Lavilla-Puerta, Noemi La Monaca, Giulia Ambrogini, Alessio Sbrana, Sara Delucchi, Pierdomenico Perata, Gianpiero Vigani, Beatrice Giuntoli,

Global Burden of Polycystic Ovary Syndrome: Socioeconomic Disparities, Reproductive Impacts, and Projections to 2050

CONCLUSION: From 1990 to 2021, global PCOS burden increased substantially, with marked socioeconomic and regional disparities. This underscores the need for enhanced screening, personalised treatments, and targeted interventions in low-SDI regions to promote reproductive health equity.

Published on: Sun, 08 Mar 2026 06:00:00 -0400

Authors: Chenzhen Du, Liling Deng, Junlin Ran, Yanzhong Wang, Dongfeng Tang, Lu Liu, Lidan Liu, Canlong Wang, Salma Ayis, Lu Chen, Yi Li, Hongyan Wang, Bo Deng, Xiaoyan Jiang, Wuquan Deng,

Pre-trigger risk scoring for moderate-to-severe ovarian hyperstimulation syndrome in in vitro fertilization and intracytoplasmic sperm injection cycles

No abstract

Published on: Sat, 07 Mar 2026 06:00:00 -0500

Authors: Lina He, Wei Chen, Jie Lin, Li Hao, Fuming Wan, Yanhong Fu, Qiongyu Wu, Xu Ran, Zhengwen Qin,

Integrated weighted gene co-expression network analysis and machine learning analysis identifies SEC14L5 as a potential biomarker for polycystic ovary syndrome

CONCLUSIONS: Our study highlights SEC14L5 as a key differentially expressed gene in PCOS, providing a promising target for clinical research and treatment of PCOS patients.

Published on: Fri, 06 Mar 2026 06:00:00 -0500

Authors: Zhe Wang, Fei Yu, Pei He, Rui Hua, Yinghe Zhao, Hongchuan Tan, Song Quan, Mian Liu,

Knockdown of miR-21-5P targets and regulates PDCD4-induced apoptosis in ovarian granulosa cells and ameliorates in sulin resistance in polycystic ovary syndrom

This study examined the role of miRNA-21-5p in a rat model of polycystic ovary syndrome with insulin resistance (PCOS-IR) and its potential involvement in ovarian granulosa cell apoptosis. Female Sprague-Dawley rats were divided into four groups, with the PCOS-IR model established using dehydroepiandrosterone combined with a high-sugar, high-fat diet. Lentiviral transduction was utilized to silence miRNA-21-5p. Serum hormone levels were assessed via ELISA, while the protein expression of PDCD4,...

Published on: Fri, 06 Mar 2026 06:00:00 -0500

Authors: Hengzhen He, Peng Ning, Xiaohong Chen, Jing Lin,

Outcomes from a trainee-run ovulation induction program at a large urban safety net hospital

CONCLUSIONS: PRs from this low-resource OI program are comparable to published data, demonstrating that fellow and resident-run initiatives can be successful in bridging the gap in fertility care.

Published on: Fri, 06 Mar 2026 06:00:00 -0500

Authors: Amelia G Kelly, Gillian Stein, Rachel Linfield, Carlos M Parra, Emily M Weidenbaum, Jacquelyn Shaw, Sarah D Cascante, Jennifer K Blakemore,

Dietary interventions for modulating the gut microbiome in PCOS management

CONCLUSION: Modulating the gut microbiome through diet is a promising, non-invasive, cost-effective strategy for PCOS management. By targeting insulin resistance, androgen excess, and inflammation, nutrition-based interventions can improve metabolic and reproductive outcomes. Long-term randomized trials are needed to strengthen causal evidence and guide personalized dietary approaches.

Published on: Fri, 06 Mar 2026 06:00:00 -0500

Authors: Ekta Patel,

Triglyceride-glucose index and assisted reproductive outcomes in non-PCOS women: evidence from a propensity score-weighted cohort of 9,903 patients

No abstract

Published on: Thu, 05 Mar 2026 06:00:00 -0500

Authors: Wenjie Huang, Liuyan Wei, Lijun Min, Zuxing Qin, Ni Tang, Liuhong Yang, Huihui Xu, Jiaoyan Liu, Xiaoping Ren, Li Tang, Li Fan, Huawei Wang,

Expression of TGFB1 and ERK in cumulus cells: Implications for oocyte maturation in women with polycystic ovary syndrome: A cross-sectional study

CONCLUSION: The observed associations between TGFB1 and ERK expression and reproductive outcomes highlight their potential as biomarkers for selecting competent oocytes and predicting embryo viability.

Published on: Thu, 05 Mar 2026 06:00:00 -0500

Authors: Mohammadhossein Fakherbaheri, Hanieh Shafienia, Seyed Mehdi Kalantar, Fateme Montazeri,

Comparison of frozen embryo transfer outcomes in hormonal vs. mild stimulation protocols in polycystic ovary syndrome women: A randomized controlled trial

CONCLUSION: This study showed that MOS achieved higher clinical and successful pregnancy rates than HRT in women with PCOS.

Published on: Thu, 05 Mar 2026 06:00:00 -0500

Authors: Kobra Hamdi, Sahar Khakpour, Aliyeh Ghasemzadeh Darjani, Laya Farzadi, Behrouz Niknafs, Nazli Navali, Parvin Hakimi, Roghayeh Anvari Aliabad, Hamed Hajipour,

Unilateral vulvar hematoma after laparoscopic detorsion of the ipsilateral ovary following oocyte retrieval for IVF: A case report and review of anatomy and surgical planning

A case is reported of delayed ovarian torsion following controlled ovarian hyperstimulation and uncomplicated oocyte retrieval, further complicated by post-laparoscopic ipsilateral vulvar hematoma. A 37-year-old nulliparous woman with a history of polycystic ovary syndrome presented with clinical symptoms of ovarian torsion on post-retrieval day 8 and underwent laparoscopic detorsion. Her case was complicated by a large non-traumatic vulvar hematoma on post-laparoscopy day 1. Despite safe...

Published on: Thu, 05 Mar 2026 06:00:00 -0500

Authors: Rachel Linfield, Pip Lipkin, Jenna Reich, Nirali Jain, Jennifer Blakemore,

Effects of supplementation with two probiotic strains on metabolic profile, hormonal status, oxidative stress, and quality of life in women with polycystic ovary syndrome: A study protocol for a randomized clinical trial

BACKGROUND: Polycystic ovarian syndrome (PCOS) is a common endocrine disorder in women, associated with insulin resistance, ovulatory dysfunction, hyperandrogenism, and inflammation. Current treatments often focus on symptoms rather than underlying causes, emphasizing the need for comprehensive strategies. Recently, probiotics have emerged as a safe and cost-effective nutritional option for managing metabolic issues.

Published on: Thu, 05 Mar 2026 06:00:00 -0500

Authors: Mahsa Shirani, Mohammad Bagherniya, Omid Sadeghi, Hatav Ghasemi Tehrani, Mohammad Hadi Eskandari, Manoj Sharma, Gholamreza Askari,

Frequency of Impaired Oral Glucose Tolerance Test Results in Women with Polycystic Ovary Syndrome

CONCLUSION: Dysglycaemia is common in women with PCOS in outpatient care. Routine OGTT-based screening should be integrated into clinical assessment to enable early identification and management of metabolic risk.

Published on: Wed, 04 Mar 2026 06:00:00 -0500

Authors: Sana Zahid, Rabeea Sadaf, Nadia Rani, Maria Ayub, Nabeela Wazir, Farah Qaiser,

Synergistic therapeutic effects of metformin and curcumin on polycystic ovary syndrome via regulation of insulin resistance and oxidative stress in a rat model

CONCLUSION: Combined administration of metformin and curcumin demonstrated synergistic therapeutic effects in PCOS rats by concurrently addressing insulin resistance and oxidative stress. These findings support the clinical potential of this combination as an effective strategy for managing PCOS. Further clinical studies are necessary to validate these promising preclinical findings.

Published on: Wed, 04 Mar 2026 06:00:00 -0500

Authors: Lina Zheng, Baohua Wu, Junli Zhang, Yianduo Zhang, Zhiling Yang, Caifeng Deng, Chaolin Huang, Ling Lu,

Retinal and Choroidal Structural and Microvascular Characteristics in Women With Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Optical Coherence Tomography (OCT) and OCT Angiography (OCTA) Studies

Polycystic ovary syndrome (PCOS) is a complex endocrine disorder that involves metabolic, hormonal, and inflammatory changes. These changes can affect tissues with high metabolic needs and sensitive microvascular systems. Optical coherence tomography (OCT) and OCT angiography (OCTA) are non-invasive ways to assess the structure and blood vessels of the retina and choroid. However, studies on women with PCOS have shown mixed results. This systematic review and meta-analysis set out to combine and...

Published on: Wed, 04 Mar 2026 06:00:00 -0500

Authors: Abdullah Bousamri, Mohammad Al-Shehri, Mohammad Kana'an, Talal Almutairi, Faisal Alharbi, Ahmad Aburezq, Abdulaziz Bousamri,