Genital herpes is an infection. It causes small, painful, fluid-filled blisters. These blisters break open and leave an indented sore or ulcer. They can be found on:
Genital herpes is caused by the herpes simplex virus type 1 or type 2. The virus enters the body through a break in the skin or through mucous membranes. After the first outbreak, the virus migrates to nerve endings at the base of the spine. It will remain there until the next outbreak.
The virus is spread through:
The virus is most contagious when blisters are present. It is also contagious during the shedding stage. This is the stage before blisters or sores are visible. The virus may also spread when inactive between visible outbreaks.
The strongest risk factor is having unprotected sex with an infected partner.
Once herpes simplex is in the body, other factors can trigger the blisters to form. These can include:
Often, the cause of an outbreak is unknown.
Symptoms depend on whether or not this is your first episode. The virus remains dormant between outbreaks. During this time, you may not have visible symptoms. You may still be shedding the virus. This means the virus can be spread during sex.
The number of outbreaks varies. Most people have an outbreak at least once per year.
This is when you are first exposed to the virus. You may not have any symptoms, or you may feel like you have the flu . This can include fever and muscle aches. The blisters may be in the genital area or other areas, like the mouth, lips, or tongue. The size and number of ulcers are usually larger during this first time. It takes about two weeks for the primary infection to resolve. If you get another infection it may take up to six weeks for the blisters to go away.
This happens when the virus reactivates in your body. How severe the virus is, how long it lasts, and how much is shed all vary. In most cases, these infections are shorter. They last about 3-7 days. They often have smaller and fewer ulcers. Symptoms are usually around the blister or ulcer area. Remember that you can still spread the virus even if you don't have any symptoms.
The doctor will ask about your symptoms and medical history. A physical exam will be done. The blisters and ulcers will be looked at. Lesions inside the urinary tract, vagina, or cervix may not be easily seen. To help with the diagnosis, your doctor may:
Treatments to ease pain include:
Treatments to speed healing include:
Treatments for bacterial infection of the blisters or sores include:
To prevent the spread of the herpes simplex virus:
RESOURCES:
The American College of Obstetrics and Gynecology
http://www.acog.org/
American Social Health Association
http://www.ashastd.org/
International Herpes Alliance
http://www.herpesalliance.org/
CANADIAN RESOURCES:
Health Canada
http://www.hc-sc.gc.ca/index_e.html/
Sex Information and Education Council of Canada
http://www.sieccan.org/
Sexually Transmitted Diseases
Ministry of Health and Long-Term Care
http://www.health.gov.on.ca/
References:
Berkow R. The Merck Manual of Medical Information . New York, NY: Pocket; 2000.
Contraception and STDs. Mayo Foundation for Medical Education and Research website. Available at: http://mayoresearch.mayo.edu/mayo/research/ndc_education/upload/most_contraception.pdf . Published 2003. Accessed June 24, 2008.
Herpes genitalis. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed/what.php . Updated June 2008. Accessed June 24, 2008.
Herpes simplex. American Academy of Dermatology website. Available at: http://www.aad.org . Published 2005. Accessed June 24, 2008.
Last reviewed February 2009 by Rosalyn Carson-DeWitt, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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