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  1. Chlamydia: Causes, Symptoms, Treatment & Prevention

    Chlamydia is one of the most common sexually transmitted infections (STIs). You can get chlamydia through vaginal, anal or oral sex with a partner who has chlamydia.

  2. How is chlamydia transmitted?

    How is chlamydia transmitted? Chlamydia, like other STIs, is passed from an infected person to a partner through certain sexual activities. Chlamydia is passed primarily during anal or vaginal sex. …

  3. About Chlamydia | Chlamydia | CDC

    Jan 31, 2025 · You can get chlamydia by having vaginal, anal, or oral sex without a condom with someone who has the infection. A pregnant woman with chlamydia can give the infection to her baby …

  4. Chlamydia - World Health Organization (WHO)

    Nov 21, 2025 · Chlamydia is a preventable and curable sexually transmitted infection (STI) caused by the bacterium Chlamydia trachomatis, which is primarily transmitted through vaginal, oral and anal sex.

  5. Chlamydia trachomatis - Symptoms and causes - Mayo Clinic

    Chlamydia is caused by Chlamydia trachomatis (truh-KOH-muh-tis) bacteria and spread through oral, vaginal or anal sex. You might not know you have chlamydia because many people don't have …

  6. Chlamydia: Symptoms, Treatments, Causes, and More - Healthline

    May 13, 2025 · How is chlamydia transmitted? Sexual activity without a condom or other barrier method is the main way a chlamydia infection can be transmitted. Penetration doesn’t have to occur to …

  7. What is Chlamydia? | Causes of Chlamydia Infection

    Chlamydia is a SUPER common bacterial infection that you can get from sexual contact with another person. Close to 3 million Americans get it every year, most commonly among 14- to 24-year-olds. …

  8. Chlamydia: Symptoms, Risk, Treatment, and Prevention

    Sep 5, 2025 · Chlamydia spreads through vaginal, anal, and oral sex. Most people with chlamydia don't show symptoms, but the infection can cause serious complications if left untreated. Regular …

  9. • Practice safe sex is the most effective way to prevent chlamydia transmission. • Consistent and correct use of condoms during vaginal, anal, and oral sex. • Get regular STI screenings especially if you …

  10. Chlamydia Infections - MedlinePlus

    May 31, 2024 · Chlamydia is a common sexually transmitted infection (STI). It is caused by bacteria called Chlamydia trachomatis. Anyone can get chlamydia. It often doesn't cause symptoms, so …