Sexually transmitted infections (STIs)

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Sexually transmitted infections are diseases that are spread through sexual contact. Learn about the different types of STIs and when and how to talk to your child or teen about STIs.

Key points

  • Sexually transmitted infections (STIs) are spread from person to person through sexual contact.
  • STIs can be prevented by using protection such as condoms, discussing STIs and safe sex with a partner or partners, asking a health-care provider about vaccines, and getting regularly tested.
  • If your teen thinks they have an STI, they should make an appointment with a health-care provider right away so they can be tested and start treatment.
Last updated: April 10th 2023