Many people think that only prostitutes, homosexuals or promiscuous people get STDs.
This is not true. If you are having sex with partners you do not know well and who may have been having sex with others, you are likely to get an STD sooner or later. Some people believe that STDs are not a serious problem any more because all STDs can be treated with a quick trip to the doctor and an injection of penicillin. This is not true. In fact, some STDs are difficult or impossible to treat.