The established role of the male partner in overall infertility is almost 50%. 1 The most significant cause is degraded number as well as the quality of sperms. 2 Spermatogenesis is governed by gonadotropin-releasing hormone (GnRH) then follicle-stimulating hormone (FSH) and finally by testosterone. which is linked with puberty. https://foldlyers.shop/product-category/headers-idc/