Genital herpes simplex virus affects a substantial proportion of the population.
Most infections are sub-clinical.
Genital herpes may be acquired from symptomatic or asymptomatic sexual partners, and from genital, oral or anal sexual contact. In view of the prognosis, management and advice given to individuals with HSV infection, the diagnosis should be confirmed by laboratory methods. Systemic antiviral therapy may reduce the severity and duration of episodes. Genital herpes increase the risk of HIV transmission. This primary infection may be symptomatic, but most HSV infections are asymptomatic and hence unrecognised.