Sperm & semen · In plain English

Azoospermia

No sperm were found in the semen sample examined by the laboratory. This differs from having a low sperm count.

Also searched as: no sperm found

Why you might see this term

The result normally needs confirmation and specialist assessment to understand whether sperm production, a blockage or another factor may be involved.

What to keep in mind

It does not, by itself, show whether sperm could be found through further investigation or retrieval. Seek prompt specialist advice.

Sources & further reading

Prepared by ProFertility · Updated 23 October 2026.

Educational information based on the linked sources. This explanation is not an individual diagnosis or a treatment recommendation. A term appearing here does not mean the test is necessary or included in a particular kit.

Suggest a correction or ask a question →

Looking up another word?

You can search by abbreviation, full name or everyday language.

Back to the fertility A–Z →