Overview
Chlamydia is a curable sexually transmitted infection (STI). You can get chlamydial infection during vaginal, oral, or anal sexual contact with an infected partner. It can cause serious problems in men and women, such as penile discharge and infertility respectively, as well as infections in newborn babies of infected mothers.
Chlamydia is one of the most widespread bacterial STIs in the United States. The Centers for Disease Control and Prevention (CDC) estimates 2.8 million people are infected each year.