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Is 'oligospermia' the same as 'azoospermia'?

By Silvia Azaña Gutiérrez B.Sc., M.Sc. (embryologist).
Last Update: 08/27/2026

No, they are not the same. Oligospermia refers to a low concentration of sperm in the ejaculate, while azoospermia refers to the complete absence of sperm in the ejaculate.

Read the full article on: What Is Oligospermia? Causes and treatment of a low sperm count ( 69).
Silvia Azaña Gutiérrez
Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Embryologist
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV
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Embryologist. Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics. License: 3435-CV.
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