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Sperm Concentration (Qualitative Microfluidic Analysis)

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

This test evaluates the number of sperm cells in a semen sample using a specialized microfluidic method to assess fertility.

Quick summary

["A sperm count helps determine if sperm production is normal for fertility evaluation."]

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

Key facts at a glance

LOINC
43154-4
Short code
Sperm p conc Smn Ql Micro
Synonyms
Sperm p conc Smn Ql Micro
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
microscopy-light
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 test analyzes the concentration of sperm cells in your semen sample. It uses a microfluidic technique to count and assess the presence of viable sperm, which is critical for diagnosing potential infertility issues or evaluating sperm quality.

Why It Matters for Fertility

Sperm concentration is an important factor in male fertility. Low sperm counts may indicate problems with sperm production, motility, or overall sperm health, which can affect fertility. This test is often part of a broader evaluation when a couple experiences difficulty conceiving.

Sample Collection and Preparation

You will need to provide a semen sample, typically collected through masturbation into a sterile container. The sample is then processed and analyzed using a specialized microfluidic device to count sperm cells accurately.

When This Test Is Ordered

This test is commonly requested as part of a fertility evaluation for men, especially when there are concerns about infertility, unexplained infertility, or recurrent pregnancy loss. It may also be used in cases of unexplained low sperm motility or abnormal semen analysis results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

What does a low sperm concentration mean?
A low sperm concentration may indicate problems with sperm production, such as hormonal imbalances, genetic factors, or conditions affecting the testes. It can also be due to lifestyle factors like smoking, excessive alcohol use, or exposure to certain chemicals. Further evaluation may include additional tests like hormone levels, genetic screening, or imaging studies.
What if my sperm count is normal but fertility issues persist?
Even if your sperm concentration is within normal limits, other factors like sperm motility, morphology (shape), or semen volume may still affect fertility. A complete semen analysis can provide more detailed insights. Your healthcare provider may recommend additional tests, such as a motility test, morphology evaluation, or a more comprehensive fertility workup.
How long does it take to get results from this test?
Results from this test are typically available within a few days to a week, depending on the lab’s processing time. Your healthcare provider will discuss the results with you and may recommend further steps if needed.
  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