No Sperm Found on My Semen Analysis — What Happens Next?
Being told that no sperm were found on your semen analysis can be worrying. This is called azoospermia.
Importantly, azoospermia is a test result — not the final diagnosis. The next step is usually to confirm the result and work out why sperm are not appearing in the semen.[1-3]
If you have your report, our Semen Analysis Interpreter may help explain the terminology.
First: confirm the result
Semen results can vary, so a repeat semen analysis is usually recommended before making major treatment decisions.[1-3]
Sometimes very small numbers of sperm are found when the sample is examined more closely. This is known as cryptozoospermia.[1]
You can also use the Azoospermia Pathway Finder to understand the usual next steps.
What causes azoospermia?
There are two main types.
Obstructive azoospermia: sperm may be produced normally but cannot reach the semen because of a blockage. Causes can include previous vasectomy, surgery or abnormalities of the reproductive tubes.
Non-obstructive azoospermia: sperm production within the testicle is reduced. Possible causes include genetic conditions, previous undescended testes, testicular injury, hormonal problems or some medical treatments.[2,3]
What tests might I need?
A male fertility assessment may include:
a repeat semen analysis
a medical and fertility history
examination of the testicles and reproductive system
blood tests such as FSH, LH and testosterone
genetic testing in selected men.[2-4]
A high FSH can suggest reduced sperm production, but FSH alone cannot tell whether sperm will or will not be found if sperm retrieval is later considered.[2]
The Male Fertility Assessment Checklist can help you prepare.
Can I still have a biological child?
Possibly. It depends on the cause.
If there is a blockage, treatment may include reconstructive surgery or sperm retrieval with assisted reproduction.[2,3]
For selected men with non-obstructive azoospermia, microdissection testicular sperm extraction (microTESE) may be considered. This procedure looks for small areas of sperm production within the testicle.[2,5]
However, sperm retrieval is not guaranteed.
Read more about microTESE for azoospermia.
What happens next?
After a semen analysis shows no sperm, the usual approach is to:
Confirm the result.
Work out whether there is a blockage or reduced sperm production.
Check hormones and consider genetic testing.
Discuss fertility options based on the results and both partners' circumstances.
No sperm on one semen analysis does not automatically mean there are no fertility options. A structured assessment can help clarify the cause and which pathways may be appropriate.
Request a Male Fertility Appointment
This information is general and does not replace individual medical advice.
References
World Health Organization. WHO laboratory manual for the examination and processing of human semen. 6th ed. Geneva: World Health Organization; 2021.
European Association of Urology. EAU guidelines on sexual and reproductive health: male infertility. Arnhem: EAU Guidelines Office; 2026.
Schlegel PN, Sigman M, Collura B, De Jonge CJ, Eisenberg ML, Lamb DJ, et al. Diagnosis and treatment of infertility in men: AUA/ASRM guideline part I. J Urol. 2021;205(1):36-43.
Brannigan RE, Hermanson L, Kaczmarek J, Kim SK, Kirkby E, Tanrikut C. Updates to male infertility: AUA/ASRM guideline (2024). J Urol. 2024;212(6):789-99.
Schlegel PN. Testicular sperm extraction: microdissection improves sperm yield with minimal tissue excision. Hum Reprod. 1999;14(1):131-5.
