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Sperm Protein Profile: Concentrations of Seminal Plasma Proteins

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

This test measures the levels of specific proteins found in semen, which can help assess sperm health, motility, and potential fertility issues. It may also be used in cases of unexplained infertility or to evaluate male reproductive function.

Quick summary

["This test helps evaluate sperm quality and reproductive health by examining protein concentrations in semen."]

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

Key facts at a glance

LOINC
57456-6
Short code
Sperm Prog p conc # Smn
Synonyms
Sperm Prog p conc # Smn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Might Be Ordered

Your healthcare provider may recommend this test if you or your partner are experiencing fertility challenges, unexplained infertility, or if you have symptoms like low sperm count, abnormal semen analysis results, or recurrent pregnancy loss. It may also be part of a broader evaluation for conditions affecting male reproductive health.

What to Expect Before the Test

No special preparation is typically required. You may be asked to provide a semen sample, usually collected through masturbation into a sterile container. Follow your healthcare provider’s instructions for timing and collection to ensure accurate results.

What the Test Measures

This test analyzes the concentrations of key proteins in seminal plasma, which include enzymes, antioxidants, and other molecules that support sperm function. These proteins can reflect the health of sperm cells, their ability to move, and their potential to fertilize an egg.

How the Results Are Used

The results help identify imbalances in seminal proteins that may indicate underlying issues, such as poor sperm quality, inflammation, or hormonal imbalances. This information can guide treatment options, such as lifestyle changes, medical interventions, or further diagnostic testing.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal protein concentrations in semen can signal problems like oxidative stress, infection, or genetic factors affecting sperm. Elevated or low levels of certain proteins may correlate with reduced fertility, recurrent miscarriages, or other reproductive health concerns. This test is often used alongside other fertility assessments to provide a comprehensive evaluation.

Short name

Seminal Protein Analysis

Frequently asked questions

What does a normal range of these proteins mean for fertility?
A normal range of seminal proteins typically indicates healthy sperm function and reproductive potential. However, since reference ranges can vary by lab and protein type, your results will be interpreted in the context of your overall health and clinical picture. Your healthcare provider will discuss what the results mean for your specific situation.
How long does it take to get results from this test?
Test results are usually available within 1 to 2 weeks after your sample is collected and processed. The timeline can vary depending on lab workload and follow-up requirements, so check with your provider for an estimated turnaround time.
Can lifestyle changes affect the results of this test?
Yes, certain lifestyle factors—such as smoking, alcohol consumption, exposure to toxins, or poor diet—may influence protein levels in semen. Avoiding these factors for at least 2–3 weeks before testing can help ensure more accurate results. Your provider may recommend specific adjustments based on your situation.
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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