Genital herpes is one of the most common sexually transmitted diseases in the U.S. It is caused by the herpes simplex virus (HSV).
Most cases of genital herpes are caused by infection by the herpes simplex virus type 2 (HSV-2).
Herpes simplex virus type 1 (HSV-1) is more often the cause of cold sores or fever blisters. But it can also be a cause of genital herpes.
Most people with genital herpes don't know they have it. That's because in most people it produces either no symptoms or very mild...