A medical condition in which a man's semen contains no sperm cells, resulting in infertility, also called aspermia.
From Greek 'a-' (without) + 'zoo-' (life/animal) + 'spermia' (from sperma, seed). Medical term from Greek combining forms, standardized in reproductive medicine.
Azoospermia affects 1% of men and is one of the most common causes of male infertility—doctors distinguish between obstructive cases (blocked pipes) and non-obstructive cases (the body isn't making sperm).
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