Definition of STDs in men

1. Sexually Transmitted Diseases (STDs) Slideshow Pictures
2. Take the Quiz on STDs

STDs in men: Sexually transmitted disease (STD) as it affects men. Men can contract all the known STDs but may have no symptoms or have different symptoms than women do. For example, most men who have chlamydia have no symptoms at all but can easily pass the infection on to their sexual partners.