Chlamydia is a very common infection that is spread through sexual contact. It is an infection caused by the bacterium Chlamydia trachomatis. Chlamydia infects the cervix (neck of the womb) in women and the penis in men (urethra). It can also sometimes infect the urethra in women and the throat and anus in both men and women.
Chlamydia is usually asymptomatic - people infected often have no symptoms and are unaware that they have the infection. But, chlamydia is easily detected and treatment is simple and effective. Chlamydia can have serious health consequences and requires treatment and follow-up as recommened in the Guidelines for preventive activities in general practice (the Red Book).
The number of people diagnosed with chlamydia in Australia has increased dramatically since the late 1990s, with over 80,000 people diagnosed in Australia in 2014. Most of these infections were in people aged between 15 and 29 years.