Chlamydial Infections  Information for adults

Chlamydia is a common sexually transmitted disease caused by the bacterium Chlamydia trachomatis, which affects the genital tract if acquired through vaginal sex, or the mouth or anus if acquired from oral or anal sex. Chlamydia is spread through unprotected sex with an infected person; it can also be spread from an infected mother to her baby at birth.

Most of the time, chlamydia is a "silent" infection and has few symptoms. However, it is the leading cause of infertility as permanent damage may be done to the woman's reproductive tract. In men, chronic infection can lead to sterility.