Chlamydia is a common sexually transmitted infection (STI) caused by the bacterium Chlamydia trachomatis. It is usually spread through unprotected vaginal, oral, or anal sex. Chlamydia is one of the most commonly reported STIs in the United States. Symptoms of chlamydia include abnormal discharge from the vagina or penis, burning during urination, and pain in the lower abdomen. If left untreated, chlamydia can cause serious health problems, including infertility.

Diagnosis of chlamydia is typically done through a urine test or swab of the affected area. Treatment for chlamydia is typically done with antibiotics. It is important to finish all of the antibiotics prescribed, even if symptoms have improved. It is also important to abstain from sexual activity until the infection has been completely cured. If a partner has been exposed to chlamydia, it is important to get tested and treated as well.