PCOS patients were characterized by significantly higher follicular levels of CD44(v6) (age-adjusted r = 2072.7 pg/mL, P = 0.010) and MIP-1α (adjusted for age, cause of infertility, and follicular count in prestimulatory ovary r = 3111.7 pg/mL, P = 0.007). Here, CD44 is linked to Infertility.