Chlamydia
Chlamydia is a common sexually transmitted infection (STI) caused by a bacterium called
Chlamydia trachomatis. Infection often causesāā no symptoms, and if not treated, can lead to serious reproductive health problems such as pelvic inflammatory disease (PID) and infertility. Chlamydia also can cause infections in newborn babies. Tests and effective treatments are available.ā