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Sperm Agglutination Test (Qualitative)

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

This test checks whether sperm cells clump together when mixed with a special fluid. It may be used to evaluate male fertility or assess potential causes of infertility.

Quick summary

["This simple test helps determine if sperm movement or function may be affected by certain conditions."]

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

Key facts at a glance

LOINC
106116-7
Short code
Sperm agglutn Smn Ql Aggl
Synonyms
Sperm agglutn Smn Ql Aggl
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
aggl
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The sperm agglutination test detects whether sperm cells stick together (agglutinate) in response to a specific antibody or fluid. Normally, healthy sperm move freely and do not clump. If they do, it may indicate an underlying issue with sperm production, function, or immune response.

Why It’s Done

A doctor may order this test if you’re experiencing difficulty getting pregnant, unexplained infertility, or recurrent miscarriages. It can also help identify conditions like autoimmune disorders that might affect sperm quality.

Sample Collection and Process

A small sample of semen is collected during ejaculation. The sample is then mixed with a special fluid and observed under a microscope. If agglutination (clumping) is seen, the result is reported as positive; otherwise, it’s negative.

How Results Are Interpreted

Results are qualitative (positive or negative) rather than a numeric value. A positive agglutination result suggests potential sperm dysfunction, but further testing (like semen analysis) is often needed to explore causes.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Frequently asked questions

What Does a Positive Result Mean?
A positive agglutination test may indicate an autoimmune reaction where the body’s immune system mistakenly attacks sperm. This can interfere with sperm motility or viability, reducing fertility chances. However, it’s not definitive—additional tests (e.g., semen analysis, hormone checks) are usually required to diagnose the root cause.
What Does a Negative Result Mean?
A negative result means sperm did not clump in the test, suggesting normal sperm function in this specific context. However, it does not rule out other fertility issues (e.g., low sperm count, structural problems). Follow-up testing is often needed to assess overall fertility.
Can This Test Be Done at Home?
No, this test requires a medical professional to collect and analyze the semen sample in a lab setting. It’s not a self-test and should only be performed by a healthcare provider.
  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