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Herpes test: prices compared

Herpes (HSV-1 and HSV-2)

Current prices from 8 providers, including panels that contain this test. Every price shows when we last checked it.

Medical review pendingWritten by the STD Test Prices editorial team using CDC sources

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About this test

Herpes is caused by herpes simplex virus type 1 or type 2, known as HSV-1 and HSV-2. Either type can cause genital herpes, and CDC says a growing share of genital infections is caused by HSV-1.

There are two ways to test. If you have a sore, a clinician can swab it for a NAAT, which CDC calls the most sensitive test. Without a sore, a blood test looks for IgG antibodies to HSV-1 and HSV-2. Ask for a type-specific IgG test. CDC says IgM tests are not useful.

Herpes blood tests have real limits. CDC and the U.S. Preventive Services Task Force recommend against routine herpes blood tests for people without symptoms. CDC says the most common HSV-2 blood test is often falsely positive at low index values, between 1.1 and 3.0, and those results need a second, different test. An HSV-1 result can't show whether an infection is oral or genital. A blood test can help if symptoms come and go while swab tests stay negative, or if a partner has genital herpes. Herpes is not on the national list of reportable infections.

When to test

Herpes blood tests look for antibodies, which develop in the first weeks after infection. CDC says false negatives are more common early on. Its STI treatment guidelines recommend repeating a type-specific IgG test 12 weeks after a possible exposure, and its herpes testing page says it can take up to 16 weeks or more for tests to detect infection. Test from 12 weeks; a negative result is most reliable from 16 weeks. If you have a sore, don't wait for a blood test. A swab of the sore can be tested right away and is the more accurate test.

Retesting

Herpes can't be cured, so there's no test of cure after treatment. CDC says a low positive HSV-2 result, with an index value between 1.1 and 3.0, should be confirmed with a second, different test. If an early blood test was negative, CDC recommends testing again 12 weeks after the possible exposure.

Common questions

Should I get a herpes blood test if I have no symptoms?

CDC says HSV-2 blood screening of the general population is not recommended, and the U.S. Preventive Services Task Force recommends against routine screening. A blood test can help in specific cases, such as a partner with genital herpes. Talk it through with a clinician if you're unsure.

What's the best test if I have a sore?

A swab of the sore, tested with a NAAT. CDC says that is how a suspected genital herpes sore should be confirmed. That means seeing a clinician, ideally while the sore is still there.

What does a low positive HSV-2 result mean?

It may be a false positive. CDC says the most common HSV-2 blood test is often falsely positive at index values between 1.1 and 3.0, and recommends a second test with a different method before the result is read as positive.

Is a herpes test included in a full panel?

Some full panels include an HSV-1 and HSV-2 IgG blood test and some don't. Check the What's included column. Given CDC's advice against routine screening, a panel without herpes is not missing anything you need if you have no symptoms.

Can herpes be cured?

No. Antiviral medicine can ease and shorten outbreaks, but CDC notes that these medicines don't clear the virus from the body. A clinician can help you decide on treatment.

Sources

  1. Genital Herpes (STI Treatment Guidelines) (opens in a new tab), CDC
  2. Screening for Genital Herpes (opens in a new tab), CDC
  3. Genital Herpes Infection: Serologic Screening (2023) (opens in a new tab), U.S. Preventive Services Task Force