Skip to content

Herpes Simplex Virus Type 2 Immunoglobulin G Antibody (IgG) – Mass Concentration

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

This test measures the level of antibodies against the herpes simplex virus type 2 (HSV-2) in your blood. Antibodies are proteins your immune system produces in response to infections.

Quick summary

["This test helps determine if you’ve ever been exposed to HSV-2, which can cause genital herpes."]

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

Key facts at a glance

LOINC
13252-2
Short code
HSV2 IgM CSF-aCnc
Synonyms
HSV2 IgM CSF-aCnc
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What Does This Test Measure?

The test detects IgG antibodies specific to HSV-2. IgG antibodies are typically present in your blood if you’ve had an infection in the past, even if you no longer have active symptoms. This type of antibody provides long-term immunity and is not produced during an acute infection.

Why Might You Need This Test?

Your healthcare provider may order this test if you have symptoms like sores, pain, or unusual discharge in the genital or anal area, or if you’ve been diagnosed with genital herpes and want to confirm your status. It can also be used during pregnancy to assess risk of transmission to your baby.

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 blood, which usually takes a few minutes. You can eat and drink normally before the test.

What to Expect After the Test

After the blood is drawn, you may feel a slight pinch or bruising at the site. Apply gentle pressure to stop any bleeding. Most people feel fine immediately after, but some may experience mild discomfort for a few hours.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

HSV-2 IgG Antibody

Frequently asked questions

Will this test show if I currently have herpes?
No, this test only detects antibodies from past exposure. If you have active symptoms, your doctor may recommend additional tests to check for current infection.
How long does it take to get the results?
Results are typically available within 1 to 2 business days, depending on your lab. Your healthcare provider will discuss the results with you.
Can I get herpes from someone who tests negative for HSV-2 antibodies?
Yes, HSV-2 can be transmitted even if the infected person has no visible sores or tests negative for antibodies. It’s important to practice safe sex and avoid contact with sores if you’re concerned about transmission.
  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