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Sperm Autoantibody Profile (Autoimmune Sperm Antibody Screening)

Published: August 9, 2026Updated: August 16, 2026

This test checks for antibodies in your blood that may be attacking sperm, which could affect fertility. It helps identify if an autoimmune response might be contributing to unexplained infertility.

Quick summary

["Autoantibodies targeting sperm can sometimes interfere with fertility and may require further evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
53324-0
Short code
Sperm #/area UrnS Auto
Synonyms
Sperm #/area UrnS Auto
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
automated-count
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects the presence of antibodies in your blood that target sperm proteins. These antibodies are measured through an immunoassay method, which identifies specific immune responses against sperm antigens. The test may include multiple sperm-specific autoantibodies, though exact analytes vary by lab protocol.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you or your partner have unexplained infertility, recurrent miscarriages, or other fertility concerns. It helps determine whether an autoimmune factor could be involved in sperm dysfunction or egg issues.

How the Test Works

A blood sample is drawn and analyzed using immunoassay techniques to identify antibodies that bind to sperm proteins. The results are qualitative (positive or negative) rather than quantitative, focusing on the presence or absence of these immune responses.

What the Results Mean

A positive result indicates the presence of sperm-specific autoantibodies, which may suggest an autoimmune component to fertility challenges. A negative result means no detectable antibodies were found in this test, but further evaluation may still be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Autoantibody Screening for Sperm

Frequently asked questions

What does a positive result mean for my fertility?
A positive result suggests there may be an autoimmune reaction affecting sperm function, which could impact fertility. This finding may guide additional testing, such as sperm antibody titration or assisted reproductive technologies (ART). Consult your provider to discuss next steps, as treatment options may include immune modulation or fertility treatments.
Can this test be used to diagnose infertility causes?
This test helps identify potential autoimmune factors but is not definitive for infertility diagnosis. It may be used alongside other tests (e.g., semen analysis, hormone levels) to assess fertility causes. A positive result should prompt further evaluation by a fertility specialist.
Are there any lifestyle changes I can make if my results are positive?
While no specific lifestyle changes are proven to reverse autoimmune sperm antibodies, managing stress, maintaining a healthy weight, and avoiding smoking may support overall reproductive health. Always follow your provider’s guidance for personalized advice.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy