Genital herpes is a sexually transmitted infection (STI) caused by the herpes simplex viruses type 1 (HSV-1) or type 2 (HSV-2). Most genital herpes is caused by HSV-2. HSV-1 can cause genital herpes. But it more commonly causes infections of the mouth and lips, called “fever blisters.”
Most people have no or few symptoms from herpes infection. When symptoms do occur, they usually appear as 1 or more blisters on or around the genitals or rectum. The blisters break, leaving tender sores that may take up to 4 weeks to heal. Another outbreak can appear weeks or months later. But it almost always is less severe and shorter than the first outbreak.
Although the infection can stay in the body forever, the outbreaks tend to become less severe and occur less often over time. You can pass genital herpes to someone else even when you have no symptoms.
You can get genital herpes through genital-genital contact or genital-oral contact with someone who has herpes infection. The virus is most easily spread through contact with open sores. But you also can get the virus from skin that does not appear to have a sore. You can become infected with the herpes virus without having intercourse.
