PTX3 and polycystic ovary syndrome: To address this gap, the present study investigated the association between follicular fluid levels of PTX3, TSG-6, and ITI and the FORT ratio in PCOS patients, and further assessed their correlations with clinical parameters such as AMH, AFC, BMI, age, and embryo qualityThis study is among the few pioneering investigations that concurrently assess serum and follicular fluid PTX-3 levels in PCOS patients, in relation to BMI-based subgrouping, follicular response parameters, and reproductive outcomes.