Azoospermia, Nonobstructive

Azoospermia that is caused by hereditary defects which disrupt sperm development before or during meiosis. Mutations and polymorphisms in the USP9Y (OMIM: 415000), SLC26A8 (OMIM: 606766), DAZL (OMIM: 601486), and SYCP3 (OMIM: 270960) have been identified.

Source last updated 2026-05-24T15:30:03.106Z