A sexually transmitted infection (STI) is an infection passed between people during sexual intercourse. You can be tested for STIs at either a sexual health clinic, GUM clinic or at your GP’s surgery. You can protect yourself from STIs by using barrier methods of contraception such as condoms. People don’t always suffer from symptoms and can have a sexually transmitted infection for a long time before they realise they are infected.
Chlamydia is a very common sexually transmitted infection. It is contracted through unprotected sex. Most people who have Chlamydia are teenagers and young adults. Many people are unaware that they have Chlamydia because they don’t notice the symptoms. Untreated Chlamydia can lead to infertility and other problems. Chlamydia is treated by taking a course of antibiotics.