Chlamydia results from an infection with Chlamydia trachomatis. It is a common infection that can spread through anal, vaginal, and oral sex. It can also spread to a baby during childbirth.

What you need to know about sexually transmitted infections

Chlamydia does not usually cause any symptoms, but it can result in infertility and other complications if a person does not seek treatment for it. It is easy to cure with early treatment.

If symptoms do occur, they may include a change in vaginal discharge and burning pain during urination.

Chlamydia can also affect the rectum if it occurs as a result of anal sex or spreads from another area of the body. This can lead to:

In those who do develop symptoms, they will usually appear around 7–21 days after exposure.

Learn more about chlamydia here.