A. STDs are diseases that you get by having sex (intercourse, oral or anal) with someone who already has a sexually transmitted disease. STDs are some of the most common infectious diseases (diseases that you get from another person) in the United States today. There are more than 20 kinds of STDs that affect more than 13 million women and men in this country each year.
What Are Sexually Transmitted Diseases?
From Tracee Cornforth, former About.com Guide
Updated January 12, 2006
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
Q. What are sexually transmitted
diseases or STDs?
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