| Summary: | Abstract Polycystic ovary syndrome (PCOS) is indeed one of the most common gynecological endocrine disorders, affecting a significant number of females in their reproductive age. While the exact cause of PCOS is not fully understood, several factors are believed to contribute to its onset. The relationship between polycystic ovary syndrome (PCOS) and low-grade chronic inflammation is complex and not fully understood. While there is evidence to suggest an association between PCOS and inflammation, the exact cause and causal nature of this relationship are still under investigation. Several inflammatory markers, including IL-6 (interleukin-6), TNF-α (tumor necrosis factor-alpha), IL-17 (interleukin-17), CRP (C-reactive protein), NLR (neutrophil-to-lymphocyte ratio), and PLR (platelet-to-lymphocyte ratio), have been studied about PCOS. These markers are substances produced by the immune system in response to inflammation. Increased levels of IL-17, IL-1, and IL-8 were correlated with PCO. CRP to albumin ratio can be employed as a precise bio-marker for PCOS. The neutrophil-to-lymphocyte ratio (NLR) indicates poor cardiovascular health and metabolic syndrome (MS) and can be considered a negative regulator for FSH which indirectly stimulates testosterone production. Platelet/lymphocyte ratio (PLR) and mean platelet volume (MPV) are also recently found to be associated with PCOS. The literature explaining the underlying mechanisms with specific inflammatory markers and how inflammation relates to PCOS will be highlighted in this review article. It will also discuss the roles of inflammation and the association of different inflammatory markers in the pathogenesis of PCOS, which may usher in a new era in the treatment approach for PCOS.
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