Anal herpes is caused by the herpes simplex virus (HSV) and is usually transmitted by anal sex but, in some cases, can also be transmitted through oral sex. During an outbreak, painful blisters appear ...
Genital herpes simplex virus (HSV) infections are frequently asymptomatic or undiagnosed, but more than half the US population is seropositive for HSV, and about one-fifth are positive for HSV-2.