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Sperm Motility Pre-Wash (Non-Frozen, Sperm Motility Number)

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

This test evaluates the movement ability of sperm cells before washing, which may help assess fertility potential in men.

Quick summary

["Assessing sperm motility before washing can support fertility evaluation."]

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

Key facts at a glance

LOINC
38540-1
Short code
Sperm Motile Pre Wash NFr Smn
Synonyms
Sperm Motile Pre Wash NFr 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 Is This Test Done?

Your healthcare provider may order this test if you are experiencing difficulty conceiving, or if you are undergoing fertility evaluation. It helps determine how well sperm move, which is important for fertilizing an egg.

What Does the Test Involve?

A small sample of semen is collected and examined under a microscope to measure sperm motility before washing. The sample is not frozen, and the test focuses on the number of sperm that are actively moving.

What Does the Result Mean?

The result provides a percentage of sperm that are motile (moving). While specific reference ranges vary by lab, lower motility may indicate reduced fertility potential, but results should be interpreted alongside other fertility assessments.

What Are Common Causes or Considerations?

Factors that may affect sperm motility include hormonal imbalances, exposure to toxins, infections, or certain medications. Lifestyle factors such as smoking, alcohol, or poor diet can also impact sperm quality.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a role in diagnosing potential fertility issues in men. Low motility can be a sign of underlying problems that may require further evaluation, such as genetic testing, hormone checks, or medical treatment.

Short name

Sperm Motility Pre-Wash Test

Frequently asked questions

What happens if my sperm motility is low?
A low motility score may suggest fertility challenges, but it doesn’t always mean infertility. Your doctor may recommend additional tests, like a full sperm analysis or treatment options such as lifestyle changes or assisted reproductive technologies.
How long does it take to get results?
Results are typically available within a few days to a week, depending on your lab’s processing time. Your healthcare provider will discuss the findings with you during your follow-up visit.
Does this test require fasting?
No, this test does not require fasting. Semen is collected directly from you, and the sample is analyzed immediately or within a short timeframe.
  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