Genital herpes
| Genital herpes | |
|---|---|
| Synonyms | Anogenital herpesviral infection, herpes genitalis |
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| Genital herpes in a female | |
| Classification and external resources | |
| Specialty | Infectious disease |
| ICD-10 | A60 |
| ICD-9-CM | 054.1 |
| MedlinePlus | 000857 |
| MeSH | D006558 |
Genital herpes is a genital infection caused by the herpes simplex virus (HSV). Most individuals carrying herpes are unaware they have been infected and many will never suffer an outbreak, which involves blisters similar to cold sores. While there is no cure for herpes, over time symptoms are increasingly mild and outbreaks are decreasingly frequent. When symptomatic, the typical manifestation of a primary infection is clusters of genital sores consisting of inflamed papules and vesicles on the outer surface of the genitals, resembling cold sores. These usually appear 4–7 days after sexual exposure to HSV for the first time. Genital HSV-1 infection recurs at rate of about one sixth of that of genital HSV-2.
HSV has been classified into two distinct categories, HSV-1 and HSV-2. Although genital herpes was previously caused primarily by HSV-2, genital HSV-1 infections are increasing and now cause up to 80% of infections.
In 2013 about 1.1 billion people (15.9%) had asymptomatic genital herpes and 47 million new cases of genital herpes occurred. A 1998 study indicated it was the most common sexually transmitted infection by the number of cases.
In males, the lesions occur on the glans penis, shaft of the penis or other parts of the genital region, on the inner thigh, buttocks, or anus. In females, lesions appear on or near the pubis, clitoris or other parts of the vulva, buttocks or anus.
Other common symptoms include pain, itching, and burning. Less frequent, yet still common, symptoms include discharge from the penis or vagina, fever, headache, muscle pain (myalgia), swollen and enlarged lymph nodes and malaise. Women often experience additional symptoms that include painful urination (dysuria) and cervicitis. Herpetic proctitis (inflammation of the anus and rectum) is common for individuals participating in anal intercourse.
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