Endocrine Abstracts

Background: Non-obstructive azoospermia affects about 1% of men and has a multifactorial etiology with heterogeneous testicular histology. Pure spermatogenic maturation arrest (MA) is a relatively rare NOA phenotype but its clinical relevance is high, since patients affected by MA should not undergo invasive testis surgery. A clear-cut distinction between MA and other spermatogenic disturbances leading to azoospermia is not possible with the currently available clinical tools....