Definition &e etiology Genital herpes, or Herpes progenitalis, is a sexually transmitted disease(STD) which is mainly caused by the herpes simplex viruses type 2(HSV-2). HSV can cause blister erosion and sores, which appear in and around the skin or mucous membranes of the genital area The pathogen is herpes simplex viruses (HSV) HSV-type 2,90% HSV-type1,10%。Definition & Etiology Genital herpes , or Herpes progenitalis, is a sexually transmitted disease (STD) which is mainly caused by the herpes simplex viruses type 2 (HSV-2). HSV can cause blister、erosion and sores, which appear in and around the skin or mucous membranes of the genital area. The pathogen is herpes simplex viruses （HSV） – HSV－ type 2， 90％。 – HSV－ type 1，10％