Sexually transmitted infections
When two people have sex, they share more than just strong feelings towards one another. They are also at risk of sharing sexually transmitted infections (STIs), which include chlamydia, gonorrhea, syphilis, and trichomoniasis. An estimated 357 million people contract one of these infections each year.
Some sexually transmitted infections can be very serious health issues. Some STIs, including herpes and syphilis, can more than triple the risk of being infected with HIV. STIs such as gonorrhea and chlamydia are major causes of pelvic inflammation and sterility. Most STIs can be cured when treated on time, and generally without side effects. But delaying treatment can result in complications.
Our backgrounder document shares key information on sexually transmitted infections, including how to identify the most common ones, how they are transmitted, and how they are treated.