ABSTRACT
The normal ejaculate contains less than 5×106 RC per mL, while the number of WBCs should be less than 1×106 per mL according to the WHO recommendations.
Spermatogenesis often results in the release of immature germ cells in the semen sample. High number of spermatogonial cells reflects spermatogenetic failure or spermatogenetic arrest. Because round spermatids can be used for ICSI the differentiation has a grown importance.
