: Semen Volume, Qualitative Assessment
: This test evaluates a sample of semen for its physical and qualitative characteristics, including volume, as part of a semen analysis or fertility workup.
[": A semen volume assessment is one component of fertility testing that helps evaluate semen quality and reproductive health."]
Key facts at a glance
- LOINC
- 51623-7
- Short code
- Sperm p vas # Smn
- Synonyms
- Sperm p vas # Smn
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 7.5
- Ref high
- 11.5
- 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
: What Is This Test?
: This is a qualitative assessment of semen, typically part of a broader semen analysis. It examines physical characteristics of the ejaculate, such as volume, along with other features, to help evaluate male fertility and reproductive function.
: Why Is It Ordered?
: It is usually ordered when a couple is having difficulty conceiving, when a fertility evaluation is underway, or to check reproductive health after certain medical treatments or conditions. It may also be used to follow up on prior abnormal semen results.
: How the Sample Is Collected
: A semen sample is usually collected privately by masturbation into a sterile container after a recommended period of abstinence. The sample is then delivered promptly to the laboratory for analysis. Follow the specific collection instructions provided by your healthcare provider or lab.
: What the Results Mean
: Results describe the physical and qualitative features of the sample, such as volume. Because this is a qualitative assessment, it is interpreted alongside other semen parameters. Your healthcare provider will explain what your results mean in the context of your overall fertility picture.
Reference range
Adult: 7.5-11.5 fLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
: Semen analysis, including volume assessment, is a cornerstone of male fertility evaluation. Abnormal volume or other semen characteristics can be associated with various conditions affecting the reproductive tract, hormonal function, or sperm production, and results guide further testing and treatment decisions in consultation with a clinician.
Short name
: NONE
Frequently asked questions
: Do I need to fast before this test?
: How long should I abstain before collecting the sample?
: Can one abnormal result mean I am infertile?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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