Male infertility

Abstract

Infertility affects nearly 15% of couples worldwide and is defined as failure to conceive a natural pregnancy after 1 year of regular unprotected intercourse. Despite gender biases in evaluation, 20% of infertile couples are found to have male factor as the sole cause, while another 30% of couples will be infertile in part due to male factor, resulting in approximately equal contribution of both genders to the cause. Semen analysis is the most widely accepted screening tool to evaluate for male factor infertility. If abnormalities are identified, formal evaluation by a urologist is paramount.