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Montage of people. Chlamydia is a sexually transmitted disease.

Most people who have chlamydia don’t know it since the disease often has no symptoms.

  • Chlamydia is the most commonly reported STD in the United States.
  • Sexually active females 25 years old and younger need testing every year.
  • Although it is easy to cure, chlamydia can make it difficult for a woman to get pregnant if left untreated.

CDC Fact SheetView Fact Sheet »
Signs, symptoms, transmission, treatment, prevention, and more.


 

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    Atlanta, GA 30329-4027
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  • Contact CDC–INFO
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC-INFO