Chlamydia is a bacterial infection which is transmitted through sexual contact, whether vaginal, anal or oral. It is similar to gonorrhea but is more common. The disease is caused by a microorganism called Chlamydia trachomatis. Normally, chlamydia does not present symptoms, although women who contract it might notice a change in their vaginal discharge, pain in the lower abdomen, bleeding between periods or pain when urinating. In men, it is more usual to notice burning when urinating or a discharge from the penis.
The treatment is simple, however if it goes untreated, it can cause health problems later on.