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Its etiology is uncertain and one of the hypotheses is that environmental factors, such as the bisphenol A (BPA) endocrine disruptor, may be involved.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the association between exposure to BPA and PCOS.<\/jats:p><\/jats:sec><jats:sec><jats:title>Search Strategy<\/jats:title><jats:p>Research was conducted focusing on studies published in English, Portuguese, and Spanish from January 2001 to March 2023 and available in Embase, Medline\/PubMed, Rima, Lilacs, Scielo, Google academic, and SCI databases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Selection Criteria<\/jats:title><jats:p>Studies in humans that evaluated the association between exposure to BPA and a diagnosis of PCOS.<\/jats:p><\/jats:sec><jats:sec><jats:title>Data Collection and Analysis<\/jats:title><jats:p>Following PRISMA guidelines, study characteristics and relevant data were extracted.<\/jats:p><\/jats:sec><jats:sec><jats:title>Main Results<\/jats:title><jats:p>Selection of 15 case\u2013control and 7 cross\u2010sectional studies with a total of 1682 PCOS patients. The studies were carried out in China, Poland, Turkey, Japan, Greece, Italy, the USA, Iran, Iraq, Egypt, India, Czechia, and Slovakia. A positive relationship between exposure to BPA and PCOS was described in19 studies (1391 [82.70%] of the PCOS patients). The fluids used in the studies were serum, urine, plasma, and follicular fluid. BPA was measured by ELISA and by chromatography (HPLC, HPLC\u2010MS\/MS, GC\u2013MS, and GC\u2013MS\/MS). Diagnosis of PCOS used Rotterdam criteria in 15, NIH 1999 in 3, AE&amp;PCOS Society in 2, similar to the Rotterdam criteria in 1, and criteria not informed in 1. Androgens were measured in 16 studies; in 12, hyperandrogenism was positively associated with BPA. BPA level was related to body mass index (BMI) in studies. In 15 studies independently of BMI, women with PCOS had higher BPA levels. Carbohydrate metabolism disorders were evaluated in 12 studies and in 6 a positive correlation was found with BPA levels. Lipid profile was evaluated in seven studies and in only one the correlation between lipid profile and BPA levels was present.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Exposure to BPA is positively associated with PCOS, mainly with the hyperandrogenism.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ijgo.15349","type":"journal-article","created":{"date-parts":[[2024,1,10]],"date-time":"2024-01-10T13:04:53Z","timestamp":1704891893000},"page":"190-203","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Bisphenol A and polycystic ovary syndrome in human: A systematic review"],"prefix":"10.1002","volume":"166","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3572-6680","authenticated-orcid":false,"given":"Lorena Ana Mercedes Lara","family":"Urbanetz","sequence":"first","affiliation":[{"name":"Gynecology Division, Obstetrics and Gynecology Departmente Hospital das Clinicas HCFMUSP, Faculdade 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