Chlamydia is a common sexually transmitted infection (STI) caused by the bacteria Chlamydia trachomatis. It can be transmitted through vaginal, anal, or oral sex and can cause serious health problems if left untreated. In women, chlamydia can lead to pelvic inflammatory disease (PID), infertility, and ectopic pregnancy. Fortunately, chlamydia is easily treatable with antibiotics. The most...