Wu Z, Fang L, Li Y, et al. - This meta‐analysis was undertaken to determine if circulating monocyte chemoattractant protein‐1 (MCP‐1), a secretory chemokine, levels vary between non‐polycystic ovary syndrome (PCOS) and PCOS patients. Using STATA software, heterogeneity, sensitivity, and publication bias were analyzed. Eleven studies were involved in this meta‐analysis including 897 people: 368 non‐PCOS patient and 529 PCOS patients. The results show that in women with PCOS, circulating MCP1 levels are upregulated, and this is linked to an increased risk of PCOS.