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Health Information Center

Risk Factors for Chlamydia

  • Cynthia M. Johnson, MA
Publication Type:

Condition InDepth

Risk Factors for Chlamydia

A risk factor is something that raises your chances of getting a health problem.

Chlamydia is more common in women than in men. The risk is highest among adolescents and young adults. Other things that can raise the risk are:

  • Being sexually active
  • A history of chlamydia or other STIs
  • Having a new sex partner
  • Having more than one sex partner
  • Having a partner who has an STI
  • Having sex without a condom


  • Chlamydia—CDC detailed fact sheet. Centers for Disease Control and Prevention website. Available at: https://www.cdc.gov/std/chlamydia/STDFact-chlamydia-detailed.htm.
  • Chlamydia genital infection. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/chlamydia-genital-infection.
  • Sexually transmitted diseases treatment guidelines. Centers for Disease Control and Prevention website. Available at: https://www.cdc.gov/std/treatment-guidelines/default.htm.


  • Elizabeth Margaret Prusak, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.