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Sperm Motility Analysis by Wash Preparation (Semen Sperm Motility)

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

This test evaluates the movement ability of sperm cells in a semen sample, which is important for fertility assessment.

Quick summary

["Assessing sperm motility helps determine fertility potential and identify potential reproductive issues."]

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

Key facts at a glance

LOINC
43378-9
Short code
Sperm Motile p Wash # Smn
Synonyms
Sperm Motile p Wash # 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 recommend this test if you or your partner have trouble getting pregnant, unexplained infertility, or if you’ve experienced repeated miscarriages. It helps check if sperm are moving properly, which is essential for fertilization.

How Is the Sample Collected?

A semen sample is collected through masturbation, usually in a sterile container. The sample is then prepared by washing to concentrate the sperm cells for analysis.

What Does the Test Measure?

The test measures the percentage and speed of sperm that are actively moving (motile) versus those that are not. Motility is categorized into progressive (forward movement) and non-progressive (circular or erratic movement) types.

What Are Common Findings?

Results may show normal motility (typically ≥40% progressively motile sperm), low motility (fewer than 40%), or abnormal motility patterns. Low motility can indicate underlying health issues, lifestyle factors, or medical conditions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Sperm motility is a critical factor in male fertility. Poor motility may reduce the chances of pregnancy and can be linked to conditions like varicocele, hormonal imbalances, or exposure to toxins. This test helps guide further evaluation or treatment options.

Short name

Semen Sperm Motility Test

Frequently asked questions

What Does a Low Motility Result Mean?
A low motility result suggests that fewer sperm are moving effectively, which may affect fertility. It could be due to lifestyle factors (e.g., smoking, alcohol), medical conditions, or other underlying causes that need further investigation.
How Can I Improve Sperm Motility?
Lifestyle changes such as avoiding smoking, limiting alcohol, maintaining a healthy weight, and reducing stress may support sperm health. Consulting a healthcare provider for personalized advice is recommended.
How Often Should I Get This Test?
The frequency depends on your symptoms and medical history. If you’re undergoing fertility treatment, your provider may recommend retesting after lifestyle changes or if symptoms persist.
  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