Exploring Emerging Concepts in the Pathophysiology of PCOS: Microbiome Dysbiosis and Immunological Dysregulation
June 2026
in “
Reproduction and Fertility
”
Polycystic Ovary Syndrome PCOS microbiome dysbiosis immunological dysregulation hyperandrogenism anovulation metabolic dysfunction insulin resistance endocrine effects metabolic effects immunomodulatory effects hormonal disorder microbiome imbalance immune system imbalance high androgen levels ovulation issues metabolic issues blood sugar issues hormone effects metabolism effects immune effects
TLDR PCOS involves microbiome and immune system issues, not just hormones.
Recent research on Polycystic Ovary Syndrome (PCOS) highlights that it is not solely a hormonal disorder but also involves significant microbiome dysbiosis and immunological dysregulation. Affecting 5-20% of reproductive-age women, PCOS is characterized by hyperandrogenism, anovulation, and metabolic dysfunction. The study suggests that variations in microbiome composition between different PCOS subtypes may be influenced by hyperandrogenism and insulin resistance, impacting reproductive outcomes. Although current treatments focus on endocrine and metabolic effects, they also inadvertently target the microbiome and have immunomodulatory effects. Understanding these interactions could lead to novel therapeutic approaches aimed at restoring a healthy microbiome to improve both metabolic and reproductive health.
