Approximately 15％ of couples cannot conceive a child after 1 year of regular, unprotected intercourse.Male factor infertility is contributory in another 30％ to 40％.Most causes of male infertility are treatable and the goal of many treatments is to restore the ability to conceive naturally.The dramatic recent improvements in the management of male infertility are largely contributable to improved surgical techniques and assisted reproductive technology (ART).Specifically in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) allow us to overcome even the most severe defects in spermatogenesis in which only a few are available.