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Sperm Membrane Integrity by Binding Location (24-Hour Urine Collection)

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

This test evaluates the structural integrity of sperm cells by measuring how well they bind to specific markers in a 24-hour urine sample. It helps assess sperm function, often used in fertility evaluations.

Quick summary

["This test supports understanding sperm health, which is critical for fertility assessments."]

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

Key facts at a glance

LOINC
43753-3
Short code
Sperm IgM Bind Location Smn
Synonyms
Sperm IgM Bind Location Smn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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

Why This Test Matters in Fertility

Sperm membrane integrity is vital for sperm’s ability to fertilize an egg. Damaged sperm membranes may fail to bind correctly, impacting fertility. This test helps identify potential issues before conception.

How the Test Works

A 24-hour urine sample is collected to detect specific binding markers that indicate sperm membrane health. The test measures how well these markers interact with sperm cells, providing insight into their functional state.

Sample Collection and Preparation

You’ll need to collect all urine over a full 24-hour period in a sterile container. The sample must be kept refrigerated until it reaches the lab to maintain accuracy.

What to Expect Before the Test

No special preparation is needed beyond collecting urine as directed. Avoid alcohol or certain medications that may interfere with results. Follow your healthcare provider’s instructions closely.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Sperm Membrane Integrity Test

Frequently asked questions

Low binding results may suggest sperm membrane damage, which can reduce fertility success. High binding results indicate healthy sperm membranes, supporting normal reproductive function.
This test is often used alongside other fertility assessments to pinpoint issues affecting sperm quality or function.
How long will I need to wait for results?
Results typically take 5–10 business days, depending on lab processing times. Your healthcare provider will discuss findings with you during your follow-up visit.
Can I take this test if I’m not trying to conceive?
Yes, this test is sometimes ordered as part of a broader fertility evaluation, even if you’re not actively trying to conceive. It helps assess underlying sperm health issues.
  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