Herpes on the penis looks like clusters of small, fluid-filled blisters. The herpes virus is easily spread through intimate contact during oral, anal, or vaginal sex. Men are half as likely as women ...

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) ...