Abstract
Azoospermia, or the complete absence of sperm in the ejaculate, accounts for 10–20% of males presenting with infertility (Jarow et al. 1989). Azoospermia is diagnosed when two semen samples, given at least 2 weeks apart, show no sperm before or after centrifugation (Sharlip et al. 2006). The presence of any sperm in the centrifuged pellet is considered severe oligospermia, also called cryptospermia, ruling out obstruction. The initial evaluation of the azoospermic patient should be to classify the condition as obstructive or nonobstructive.
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Kefer, J.C., French, D.B. (2011). Azoospermia: Diagnosis and Management. In: Sabanegh, E. (eds) Male Infertility. Current Clinical Urology. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-60761-193-6_3
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DOI: https://doi.org/10.1007/978-1-60761-193-6_3
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