Remember to use a condom every time you make love. Staying STD-free can be as simple as that. In fact, it's a game you don't even have to play at all. Prevention is better than treatment, and caution is better than cure. Most STD's fall into one of two groups.
Gonorrhea is a classic example.
But blisters and drips alone do not a diagnosis make. Chancroid, for example, is often misdiagnosed as syphilis, while chlamydia can cause gonorrhea-like symptoms. And other STD's produce no symptoms at all. Your job is to get yourself to one or the other if you think you may be infected. It Now Foundation.