Having a high-risk partner or partners (partner has more than one sex partner or has herpes-infected sex partners).
Having unprotected sexual contact (not using condoms).
Starting sexual activity at a young age. The younger people are when they start having sex, the greater their risk is of getting genital herpes.
Having a weakened immune system.
Being a woman. Women are more likely than men to become infected when exposed to genital herpes. And their symptoms tend to be more severe and longer-lasting. Women also are at a greater risk of having complicationsfrom a genital herpes infection.
Having herpes, especially if you have open sores, also increases your risk for becoming infected with HIV if you are exposed to HIV.