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

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,

Effect of Probiotic Supplementation on Reproductive Outcomes of Women With Polycystic Ovary Syndrome Who Are Candidates for Intrauterine Insemination: A Randomized, Double-Blind, Placebo-Controlled Trial

CONCLUSION: Probiotic supplementation for 8 weeks in women with PCOS who were candidates for IUI was associated with higher endometrial thickness, indicating a potential role in improving endometrial receptivity.

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

Authors: Tahereh Behroozilak, Mahsa Farshadfar, Samira Jahangard,

Variation in gluteofemoral adipogenesis and the phenotype of adolescent PCOS

No abstract

Published on: Tue, 03 Mar 2026 06:00:00 -0500

Authors: Francis de Zegher, Lourdes Ibáñez,

S. boulardii CNCM I-745 a yeast probiotic attenuates PCOS-IR by suppressing LPS mediated inflammation in female rats

Chronic low-grade inflammation along with gut microbial dysbiosis, plays a crucial role in the development and progression of polycystic ovary syndrome (PCOS), the complex endocrine disorder associated with long-term metabolic consequences. S. boulardii is a promising yeast in the correction of gut dysbiosis. The present study aimed to test the efficacy of S. boulardii in managing PCOS in PCOS-IR rats induced by letrozole (1 mg/kg/day) and a high-fat diet (40%). Subsequently, the rats were...

Published on: Tue, 03 Mar 2026 06:00:00 -0500

Authors: Sananda Sil, Angshita Ghosh, Tarun Kumar Kar, Suman Kumar Halder, Sandip Chattopadhyay,

Retraction Note: Treatment of lean PCOS teenagers: a follow-up comparison between Myo-Inositol and oral contraceptives

The article "Treatment of lean PCOS teenagers: a follow-up comparison between Myo-Inositol and oral contraceptives" by L. Pkhaladze, M. Russo, V. Unfer, M. Nordio, S. Basciani, A. Khomasuridze published in Eur Rev Med Pharmacol Sci 2021; 25 (23): 7476-7485-DOI: 10.26355/eurrev_202112_27447-PMID: 34919250 has been retracted in accordance with the Publisher and the Editor in Chief. Following the publication of the above-mentioned article, concerns were raised by a whistleblower and on PubPeer...

Published on: Tue, 03 Mar 2026 06:00:00 -0500

Authors: L Pkhaladze, M Russo, V Unfer, M Nordio, S Basciani, A Khomasuridze,

Beyond Body Mass Index: Re-Examining Vitamin D Deficiency in Infertile Women With PCOS

No abstract

Published on: Tue, 03 Mar 2026 06:00:00 -0500

Authors: Sushma Narsing Katkuri, Nivedita Nikhil Desai, Nirupma Gupta, Pankaj Nainwal, Saumya Das, Jeffrin Reneus Paul,

Association between the diabetes risk reduction diet and polycystic ovary syndrome

No abstract

Published on: Mon, 02 Mar 2026 06:00:00 -0500

Authors: Maryam Jamalvandi, Hawal Lateef Fateh, Touraj Ahmadi, Jalal Moludi, Mehnoosh Samadi, Mehdi Moradinazar,

Polycystic ovary syndrome: An update on diagnosis and management

Polycystic ovary syndrome (PCOS) is a common but complex heterogeneous endocrine disorder characterized by androgen excess, insulin resistance, and ovulatory dysfunction, presenting challenges in diagnosis and management. This review provides an overview of PCOS, incorporating key updates from the 2023 international evidence-based guideline. We aim to enhance understanding of PCOS and improve individualized and evidence-based patient care.

Published on: Mon, 02 Mar 2026 06:00:00 -0500

Authors: Nayoung Sung, Jawaria Amir, Ula Abed Alwahab, Tommaso Falcone,

Circadian rhythm disruption induces PCOS-like phenotypes by interfering with ovarian steroid hormone synthesis pathways

Stressors are a critical contributor to reproductive dysfunction. This study investigated whether experimentally induced chronic stress leads to infertility and elucidated its disruptive mechanisms on the female reproductive endocrine system. Three chronic stress models were established in female ICR mice: chronic restraint stress (CRS), circadian rhythm disruption (CR), and chronic unpredictable mild stress (CUMS). Systemic evaluations revealed that the CR model most significantly activated the...

Published on: Mon, 02 Mar 2026 06:00:00 -0500

Authors: ChengYu Feng, LiYing Guo, Xin Gao, Xia Ji, Ying Liu, JiWei Liu, ShuJun Liu, Yang Liu, LiBing Ma, XiaoYing He,