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Sperm Semen Total Motility Concentration (Mass Concentration)

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

This test measures how many sperm cells in your semen are moving actively, along with their concentration. It’s part of evaluating fertility in both men and couples trying to conceive.

Quick summary

["Assesses sperm motility and count to help diagnose fertility issues."]

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

Key facts at a glance

LOINC
10599-9
Short code
Sperm Pen Smn+Cvm Ql Kremer
Synonyms
Sperm Pen Smn+Cvm Ql Kremer
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
kremer
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

Active sperm movement is crucial for successful fertilization. Low motility or abnormal sperm concentration can indicate problems with sperm quality, which may affect fertility. This test helps identify whether sperm function may need medical attention.

What to Expect Before the Test

You’ll provide a semen sample (typically collected via masturbation into a sterile container) after abstaining from ejaculation for 2–5 days. The sample is then analyzed under a microscope to count and assess the movement of sperm cells.

How the Results Are Interpreted

Results are reported as a percentage of motile sperm (how many are moving) and their concentration (number of sperm per volume). While specific thresholds vary by lab, lower than expected motility or concentration may signal fertility concerns.

Common Reasons for Testing

This test is often ordered if you or your partner have trouble conceiving, unexplained infertility, or recurrent pregnancy loss. It may also be part of a broader evaluation for conditions like varicocele, low testosterone, or genetic sperm abnormalities.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Semen Motility Test

Frequently asked questions

What does a low motility or concentration result mean?
A low result may indicate issues like poor sperm production, blockages in the reproductive tract, or underlying health conditions (e.g., infections, hormonal imbalances). It doesn’t always mean infertility, but it often prompts further evaluation, such as additional semen tests, hormone checks, or genetic testing.
How often should I get this test?
If you’re trying to conceive, you may need repeated testing (every 1–3 months) to track progress. Your doctor will determine frequency based on your individual results and symptoms. Follow-up may include lifestyle changes, medical treatments, or additional diagnostic tests.
Can diet or lifestyle affect sperm motility?
Yes. Factors like smoking, excessive alcohol, obesity, heat exposure (e.g., tight underwear), or poor nutrition can negatively impact sperm quality. Maintaining a healthy weight, avoiding toxins, and managing stress may improve outcomes. Always discuss lifestyle changes with your healthcare provider before making major adjustments.
  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