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Schistosoma antibody titer (serum/plasma)

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

This test measures the level of antibodies in your blood that your immune system produces in response to infection by *Schistosoma* parasites, which can cause chronic inflammation and organ damage in some cases.

Quick summary

["This test helps diagnose or monitor past exposure to parasitic worms that may affect your health."]

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

Key facts at a glance

LOINC
25422-7
Short code
Schistosoma Ab Titr Ser IF
Synonyms
Schistosoma Ab Titr Ser IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like skin rashes, fever, or organ-related issues (such as liver, bladder, or intestinal problems) that could be linked to parasitic infections. It may also be used in areas where schistosomiasis is common to screen for exposure, especially if you’ve traveled to or live in regions with risk factors.

What to Expect Before the Test

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw a blood sample. The process usually takes a few minutes, and you can resume normal activities afterward.

What the Results Mean

A positive result indicates the presence of antibodies, suggesting past exposure to *Schistosoma* parasites. However, this does not always mean you are currently infected or experiencing active symptoms. Your healthcare provider will interpret results in the context of your symptoms, medical history, and other tests.

Possible Causes of Positive Results

A positive antibody titer can occur after exposure to *Schistosoma* parasites, even if you don’t have active symptoms. It may also appear in people who have recovered from infection or those who live in endemic areas. Other conditions or infections can sometimes produce similar antibody responses, so further evaluation may be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Schistosoma IgG antibody titer

Frequently asked questions

What Does a Positive or Negative Result Indicate?
A positive result suggests your body has recognized and fought off *Schistosoma* parasites in the past. This does not confirm an active infection but may prompt further testing or treatment if symptoms persist. A negative result means no detectable antibodies were found, which could mean you have never been exposed or the infection has cleared.
Could This Test Detect an Active Infection?
This test primarily detects past exposure rather than active infection. For diagnosing current infection, additional tests (like parasite eggs in urine or stool) may be needed, especially if symptoms such as fever, abdominal pain, or urinary issues are present.
When Should I Follow Up with My Doctor?
If you have a positive result and ongoing symptoms (like persistent skin rashes, fatigue, or organ-related issues), discuss follow-up with your doctor. They may recommend additional tests, treatments, or monitoring based on your symptoms and medical history.
  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