Chlamydia is a common sexually transmitted infection (STI) caused by bacteria. People who have chlamydia often don’t have outward symptoms in the early stages. That might make you think you shouldn’t worry. However, chlamydia can cause health problems later, including preventing women from getting pregnant or even endangering their pregnancies.
If you have unprotected sex with someone whose STI status you’re not certain of, get tested for chlamydia and other STIs. You should get tested every time you might be exposed.