An STD is a sexually transmitted disease. You get an STD by having sexual intercourse or sexual contact with another person who is infected with the disease. STDs can be frightening, embarrassing, and dangerous, but, for the most part, are not life-threatening.
Some people who have an STD don't even know it, so always be cautious. The best way to protect yourself from an STD is to practice abstinence (no sexual contact). Contraceptives can protect you from some STDs, but not all. Remember that some STDs can be treated and cured if diagnosed early. Don't be embarrassed about getting tested for an STD. It's worth it.
Common STDs include:
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