Folia Histochemica et Cytobiologica

In the non-obstructive azoospermia versus the secretory azoospermia it is first necessary to have a clear assessment and definition and then takes care of the patient before the surgical sampling taking into account the age of the woman and in fine try to optimize the residual spermatogenesis. Biopsy seems to be the "gold standard" in non-obstructive azoospermia. The mean level of retrieval (extracted) spermatozoa is of 50%, with 20% of pregnancy/cycle and 30% of delivery/coupe with a better success for frozen sperm samples.