What is Chlamydia? Chlamydia is a Sexually Transmitted Infection
(STI) caused by a bacterium (germ). It is the most common STI in
the United States and in Boston. How can a person get Chlamydia?
Chlamydia is spread when someone has vaginal or anal sex with
someone who is infected. Chlamydia can also be passed from
mother to child during birth. It is passed through vaginal
fluids and semen. Who can get Chlamydia? Anyone who is sexually
active can get Chlamydia. Having unprotected sex (sex without a
condom) increases the chance of getting Chlamydia. In Boston,
women under 24 years of age have the highest rates of Chlamydia.
Most people do not have symptoms. Symptoms may start about 1-3
weeks after being infected. For those who do have symptoms, the
most common ones are: - Unusual discharge (yellowish or whitish
fluid) from her vagina - Pain and/or burning when she pees or
during sex - Pain in the stomach or back - Bleeding even when
it’s not her period - In more serious infections, fever -
Unusual discharge (th