ABSTRACT
Since its introduction in 1992, intracytoplasmic sperm injection (ICSI) has dramatically changed the treatment of severe male infertility1. This technique was initially introduced as a treatment for severe oligoasthenoteratozoospermia (OAT). Later, it also became a treatment option for those patients with azoospermia due to an obstruction of the vas deferens where surgery had failed or was not indicated. Both epididymal and testicular sperm were used with success2-4. Thereafter, testicular sperm from patients with severe testicular failure was also used with success5-8.
