DAZL is expressed in primordial germ cells (PGCs)21 and produces an RNA-binding protein that controls the growth, differentiation, and maturation of germ cells.22 DAZL protein acts as an activator of transcription and is present in the nucleus of gonocytes and spermatogonia.23 Lin et al23 reported that dazl transcripts were lower in the testes of azoospermia cases than in fertile men. Here, DAZL is linked to Azoospermia.