Association of Basal Serum Androgen Concentration with Follicles Number on the Day of Triggering Final Oocyte Maturation in Low Responders According to the Bologna Criteria: A Prospective Cohort Study.

Studies in animals have shown that androgens promote early follicular development and granulosa cell proliferation by augmenting follicle-stimulating hormone (FSH) receptor expression in granulosa cells. Inconsistency exists regarding the association between basal serum androgen levels and follicular development in low responders undergoing in vitro fertilization (IVF), although the number of studies is limited. The aim of the current study was to assess the association between basal serum androgen concentrations and the number of follicles ≥ 11 mm on the day of triggering final oocyte maturation in low responders undergoing IVF.