Sperm IgA (Immunoglobulin A) in Seminal Fluid
This test measures the presence of Immunoglobulin A (IgA), an antibody found in semen, which can help assess immune function and potential infections in reproductive health.
["IgA in semen may indicate immune response or infection risks in reproductive health."]
Key facts at a glance
- LOINC
- 47007-0
- Short code
- Sperm IgA NFr Ser IBT
- Synonyms
- Sperm IgA NFr Ser IBT
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- immunobead
- CPT
- 82784
- 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 Does This Test Measure?
IgA is a type of antibody produced by the immune system. In semen, it can be detected through a laboratory analysis of seminal fluid. This test helps evaluate whether IgA is present at detectable levels, which may relate to immune activity or infection in the reproductive tract.
Why Might You Need This Test?
Doctors may order this test if you have symptoms like chronic pelvic pain, unexplained infertility, recurrent infections in the reproductive system, or if you are investigating potential immune-related issues in semen.
What Does a Positive or Negative Result Mean?
A positive result indicates the presence of IgA in seminal fluid, which could suggest an immune response or infection. A negative result means IgA was not detected, which may or may not indicate normalcy depending on clinical context.
How Is This Test Performed?
A semen sample is collected and analyzed in a laboratory using immunoassay techniques to detect IgA antibodies. The sample is typically processed and tested within a few hours of collection.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
IgA in Semen
Frequently asked questions
This test may be used to diagnose or monitor conditions such as recurrent infections, immune-mediated infertility, or to evaluate the immune profile in reproductive health. It can also help guide treatment decisions if infections or immune responses are suspected.
IgA in semen can sometimes be elevated in cases of chronic inflammation or infection, but it is not a definitive test for all conditions. Results should be interpreted by a healthcare provider in conjunction with clinical findings.
No specific reference ranges are provided for this test as IgA levels in semen can vary widely and are not standardized. Results are interpreted based on clinical context and patient history.
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