The
best way to avoid having an STD is to avoid having sexual intercourse,
or to have intercourse only with one mutually faithful uninfected
partner. There is no risk of transmitting an infection if both partners
are uninfected and have intercourse only with each other. If you have
more than one partner or do not know if your partner is infected, use a
latex condom every time you have intercourse to reduce the risk of
infection. Birth control pills and other methods of contraception do
not provide protection from STDs. Latex condoms used every time you
have sexual intercourse may reduce the risk of HIV and some STD
infections. Even a latex condom does not guarantee 100% protection.