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Sperm Morphology Analysis (Qualitative)

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

This test evaluates the shape and structural integrity of sperm cells to identify defects that may affect fertility.

Quick summary

["Assessing sperm defects helps determine if fertility issues may be related to sperm quality."]

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

Key facts at a glance

LOINC
66498-7
Short code
Sperm multiple defects NFr Smn
Synonyms
Sperm multiple defects 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 This Test Is Done

Doctors may recommend this test if you’re struggling to conceive, have unexplained infertility, or have a history of recurrent pregnancy loss. It helps identify whether sperm abnormalities could be contributing to fertility challenges.

What to Expect During the Test

A semen sample is collected and examined under a microscope. The test focuses on the proportion of sperm with normal shapes (head, tail, and overall structure) compared to those with defects.

Sample Collection and Preparation

The test does not require fasting or special preparation beyond providing a semen sample, typically collected via masturbation or partner stimulation in a clinic.

What the Results Mean

Results are qualitative and expressed as a percentage of sperm with normal morphology. For example, a result might indicate whether the majority of sperm have normal shapes or if defects are prevalent.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Sperm Morphology Test

Frequently asked questions

How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on lab processing times.
What causes sperm morphology defects?
Possible causes include genetic factors, exposure to environmental toxins (e.g., chemicals, radiation), chronic illnesses (e.g., diabetes, infections), or lifestyle factors (e.g., smoking, excessive alcohol). Some men may have no identifiable cause.
Can lifestyle changes improve sperm morphology?
Yes, certain lifestyle changes such as quitting smoking, reducing alcohol intake, maintaining a healthy weight, and avoiding exposure to toxins may improve sperm quality over time. Consult your healthcare provider for personalized advice.
  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