Herpes Simplex Virus Type 2 (HSV-2) Infection
What is Herpes Simplex Virus Type 2 (HSV-2) Infection?
Herpes Simplex Virus Type 2, or HSV-2, is a viral infection that primarily affects the genital area. It belongs to the herpes virus family and spreads through sexual contact. Once the virus enters your body, it stays there for life, even when you have no symptoms.
HSV-2 causes what most people know as genital herpes. The virus lives in nerve cells and can become active at different times. When the virus is active, it can cause painful sores or blisters on or around the genitals, buttocks, or thighs. Between outbreaks, the virus stays quiet in your nerves, but it can still spread to sexual partners even when no sores are visible.
More than 1 in 6 Americans between ages 14 and 49 have HSV-2 infection. Many people with the virus never have symptoms or have such mild symptoms they don't realize they're infected. This makes HSV-2 one of the most common sexually transmitted infections in the United States.
Symptoms
Many people with HSV-2 have no symptoms or very mild symptoms that go unnoticed. When symptoms do appear, they typically include:
- Painful blisters or open sores in the genital or anal area
- Itching, burning, or tingling in the affected area before sores appear
- Pain when urinating if urine touches the sores
- Flu-like symptoms during the first outbreak, including fever and body aches
- Swollen lymph nodes in the groin area
- Headache and general feeling of being unwell
The first outbreak is usually the most severe and can last 2 to 4 weeks. Later outbreaks tend to be milder and shorter. Some people never have a second outbreak, while others have several per year. Many people with HSV-2 are asymptomatic, meaning they never develop visible sores or recognize symptoms.
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Causes and risk factors
HSV-2 spreads through direct skin-to-skin contact during vaginal, anal, or oral sex with someone who has the virus. The virus enters your body through tiny breaks in your skin or through mucous membranes in the genital area or mouth. You can get HSV-2 from a partner who has no visible sores and doesn't know they're infected, because the virus can shed from the skin without causing obvious symptoms.
Risk factors for HSV-2 infection include having multiple sexual partners, having sex at a young age, being female, having another sexually transmitted infection, and having a weakened immune system. Women are more likely to get HSV-2 than men because the virus spreads more easily from men to women during sex. Having HSV-2 also increases your risk of getting or transmitting HIV, the virus that causes AIDS. While HSV-2 cannot be cured, knowing your status helps you protect your sexual partners and manage outbreaks effectively.
How it's diagnosed
HSV-2 is diagnosed through blood tests or by testing fluid from active sores. Blood tests detect antibodies that your immune system makes in response to the virus. The HSV-2 IgG type-specific antibody test can tell if you have been infected with HSV-2, even if you have never had symptoms. These antibodies typically appear in your blood 12 to 16 weeks after exposure, so testing too early may not detect a recent infection.
Rite Aid offers HSV-2 testing as an add-on to our preventive health panel. The blood test looks for HSV-2 IgG antibodies that indicate a current or past infection. Testing is especially important if you have symptoms, have a partner with HSV-2, or want to know your status for sexual health planning. If you have active sores, your doctor can also swab the sore for a more immediate diagnosis.
Treatment options
While there is no cure for HSV-2, several approaches help manage the infection and reduce outbreaks:
- Antiviral medications like acyclovir, valacyclovir, or famciclovir to shorten outbreaks and reduce symptoms
- Daily suppressive therapy with antivirals to reduce outbreak frequency and lower transmission risk to partners
- Keeping the affected area clean and dry during outbreaks
- Wearing loose-fitting cotton clothing to reduce irritation
- Managing stress through sleep, exercise, and relaxation techniques, as stress can trigger outbreaks
- Eating a balanced diet rich in lysine and lower in arginine, which some people find helps reduce outbreaks
- Avoiding sexual contact during active outbreaks to protect partners
- Using condoms consistently to reduce transmission risk, though they don't provide complete protection
- Informing sexual partners about your HSV-2 status so they can make informed decisions
Most people with HSV-2 learn to manage the condition successfully with medication and lifestyle changes. Talk to a healthcare provider about the best treatment plan for your situation.
Need testing for Herpes Simplex Virus Type 2 (HSV-2) Infection? Add it to your panel.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Yes, many people with HSV-2 have no symptoms or symptoms so mild they don't notice them. Studies show that most people with HSV-2 don't know they're infected. The only way to know for sure is to get a blood test that checks for HSV-2 antibodies.
The HSV-2 IgG type-specific antibody test is very accurate when done at least 12 to 16 weeks after potential exposure. Testing earlier may give a false negative result because your body needs time to produce detectable antibodies. If you test negative but think you were recently exposed, your doctor may recommend retesting after a few months.
No, HSV-2 cannot be cured because the virus stays in your nerve cells for life. However, antiviral medications can effectively manage symptoms, reduce outbreak frequency, and lower the risk of spreading the virus to partners. Many people with HSV-2 have only one or two outbreaks in their lifetime.
HSV-2 primarily causes genital herpes, while HSV-1 typically causes cold sores around the mouth. However, either virus can infect either area through oral or genital contact. Blood tests can distinguish between HSV-1 and HSV-2 by detecting type-specific antibodies for each virus.
Yes, HSV-2 can spread even when you have no visible sores or symptoms. This is called asymptomatic viral shedding, when the virus is active on the skin surface without causing noticeable symptoms. Daily antiviral medication and consistent condom use help reduce transmission risk during these times.
Common triggers include stress, illness, fatigue, weakened immune system, menstruation, and friction during sex. Some people also notice outbreaks after sun exposure or certain foods. Identifying your personal triggers can help you take steps to prevent or reduce outbreaks through lifestyle changes and stress management.
Testing may be helpful if you have a partner with HSV-2, have had multiple sexual partners, or want to know your status for future relationships. Many sexual health experts recommend testing as part of a comprehensive sexually transmitted infection screening. Talk to a healthcare provider about whether testing makes sense for your situation.
Yes, pregnant women with HSV-2 can pass the virus to their babies during childbirth, which can cause serious health problems. Women with a history of genital herpes should tell their healthcare provider before delivery. Antiviral medication during pregnancy and a cesarean delivery if sores are present can greatly reduce transmission risk.
Yes, having HSV-2 increases your risk of getting or transmitting HIV. Genital herpes sores provide an entry point for HIV and make the genital area more susceptible to infection. People with both HSV-2 and HIV also have higher levels of HIV in their bodies, making HIV transmission more likely.
Take daily antiviral medication to reduce viral shedding and outbreak frequency. Use condoms consistently, although they don't provide complete protection since HSV-2 can affect areas not covered by condoms. Avoid sexual contact during outbreaks, and inform your partner about your status so they can make informed decisions about their sexual health.