A systematic review of pregnancy outcomes and management in polycystic ovary syndrome.
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Polycystic Ovary Syndrome (PCOS) now known as Polyendocrine Metabolic Ovarian Syndrome (PMOS), affects 5-20% of women of reproductive age, it is the leading cause of anovulatory infertility accounting for 70-90% of cases and resulting in lower natural conception rates and a significant contributor to adverse pregnancy outcomes. Following PRISMA 2020 guidelines, this systematic review synthesized evidence from 2014–2025, evaluating the evolving landscape of PCOS pregnancy management. It explores the relationship between PCOS and reproductive outcomes, details specific maternal and perinatal complications, and discusses the latest evidence-based interventions and emerging therapies to improve pregnancy outcomes and the long-term health of both mother and child. The findings revealed that the syndrome's pathophysiology driven by hyperandrogenism, insulin resistance, and obesity significantly increases the risks of early pregnancy loss, gestational diabetes, and pre-eclampsia. There is a paradigm shift toward individualized, multidisciplinary care. Evidence-based strategies highlight the superiority of letrozole for ovulation induction, the metabolic benefits of metformin, and the necessity of nuanced lifestyle interventions over simple weight-loss models. Furthermore, emerging research into immune-metabolic pathways, such as Interleukin-22, suggests novel therapeutic directions. The review concludes that recognizing PCOS as a high-risk obstetric condition and integrating early metabolic screening into standard care are essential to improving maternal and neonatal outcomes.