[Azoospermia: ICSI with synchronous versus non asynchronous testicular sperm retrieval].

: We review the improvement made in the management of infertile couples with obstructive and non obstructive azoospermia thanks to ICSI. We present the difficulties encountered in predicting the presence or the absence of spermatozoa in non obstructive azoospermia according to clinical and complementary investigations. Testicular biopsy is the only effective test. We recommend the practice of non synchronic testicular biopsy and sperm freezing to avoid unnecessary ovarian hyperstimulation.