How common is chlamydia?


Chlamydia is a very common sexually transmitted infection (STI) caused by the bacterium Chlamydia trachomatis. According to the World Health Organization (WHO), chlamydia is the most commonly reported bacterial STI globally.

In the United States, the Centers for Disease Control and Prevention (CDC) reported 1,808,703 cases of chlamydia in 2019. However, it is believed that the actual number of cases is much higher, as many people with chlamydia have no symptoms and therefore do not seek testing or treatment.

Chlamydia can affect anyone who is sexually active, but it is most commonly reported among young adults aged 15-24 years old. It is important to get tested for chlamydia and other STIs regularly if you are sexually active, as early detection and treatment can help prevent long-term health consequences and the spread of infection to others.

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