Although about 50% of couples referred for infertility treatment have a contributing male factor, men are generally more reluctant than women to go in for a fertility evaluation. One of the reasons for that is the mistaken notion that male infertility is associated with impotence or decreased masculinity. Submitting to fertility evaluation is essential for identifying the cause of infertility and for choosing the best course of treatment and the most suitable assisted reproductive technique.

Male factor infertility can be caused by a variety of factors such as genetics, past diseases, trauma, medication and general health and lifestyle issues. These factors can contribute to problems concerning spermatogenesis (1) or sperm delivery (2).