The Male Fertility Crisis
Male factor infertility accounts for approximately 50% of couples’ fertility challenges. Sperm concentration, motility, and morphology have declined globally over recent decades, with environmental chemical exposures as a leading hypothesis.
PFAS Effects on Spermatogenesis
PFAS disrupt Sertoli cell function, which is essential for sperm maturation. Studies show occupational PFAS exposure correlates with reduced sperm concentration, total motile count, and percentage of morphologically normal sperm.
Hormonal Mechanisms
PFAS suppress testosterone production by inhibiting Leydig cell function and suppressing LH signaling. Lower testosterone impairs spermatogenesis and reduces libido, contributing to functional infertility.
Clinical Assessment
Fertility specialists evaluating male infertility should include PFAS serum testing in environmental exposure assessments. Men in PFAS-contaminated regions benefit from semen analysis monitoring and lifestyle exposure reduction strategies.