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 ...

Approximately two-thirds of the world's population under the age of 50 years have oral or genital herpes simplex type 1 (HSV-1) infection, while one in eight have herpes simplex type 2 (HSV-2) ...