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  1. About Sexually Transmitted Infections (STIs) | STI | CDC

    At a glance Sexually transmitted infections (STIs), also known as sexually transmitted diseases (STDs), are very common. Millions of new infections occur every year in the United States. …

  2. Sexually Transmitted Infections (STIs) | STI | CDC

    Jan 16, 2024 · About What are STIs? How are they different from STDs? How are they transmitted?

  3. Fact Sheets | STI | CDC

    Feb 12, 2025 · Provides basic information about STD Risk and Oral Sex, including prevention and testing.

  4. How to Prevent STIs | STI | CDC

    Apr 9, 2024 · Overview What are STIs? An STI is a virus, bacteria, fungus, or parasite people can get through sexual contact. Sexually transmitted diseases (STDs) develop as a result of an …

  5. STI Treatment Guidelines - Centers for Disease Control and …

    Jul 10, 2025 · Treatment guidelines for sexually transmitted infections from CDC's Division of STD Prevention

  6. Clinical Guidance for STIs | STI | CDC

    Jan 16, 2024 · STD QCS highlights the services healthcare settings can offer to provide the highest-quality STD car...

  7. The Lowdown on How to Prevent STDs

    Condoms lessen the risk of infection for all STDs. You still can get certain STDs, like herpes [1] or HPV [2], from contact with your partner's skin even when using a condom.

  8. Getting Tested for STIs | STI | CDC

    Jan 31, 2025 · If you are sexually active, STI testing is one of the most important things you can do to protect your health. Have an open and honest conversation with your healthcare provider …

  9. STI Screening Recommendations

    Screening Recommendations and Considerations Referenced in Treatment Guidelines and Original Sources

  10. STI Statistics | STI Statistics | CDC

    Statistical reports of Sexually Transmitted Infections in the United States.