Chlamydia is the most common STI amongst Australians

Chlamydia Infection - Comprehensive Guide for Australians


Sexual health is a crucial aspect of overall well-being, and staying informed about common sexually transmitted infections (STIs) is essential. In Australia, one of the most prevalent STIs is Chlamydia. If you're sexually active, it is important to practice safe sex and to get tested regularly as it can often remain asymptomatic and undetected. STI Clinic Australia allows individuals to take control of their sexual health & to request a full STI screen by simply requesting it online

Epidemiology in Australia

Chlamydia is alarmingly common in Australia, making it imperative for individuals to be aware of its prevalence. According to the latest statistics from the Australian Department of Health, there are 97,000 new cases of chlamydia each year making it the most common STI to affect Australians. The incidence is particularly high among young adults aged 15-29, many of whom do not even know that they are infected.


Chlamydia is caused by the bacterium Chlamydia trachomatis, which can infect both men and women. The infection is primarily transmitted through unprotected sexual intercourse with an infected person. In women, Chlamydia can infect the cervix, urethra, and rectum, while in men, it typically targets the urethra. The bacteria can also be transmitted from an infected mother to her newborn during childbirth.


One challenging aspect of Chlamydia is that it often presents without noticeable symptoms, especially in the early stages. This silent nature of the infection makes regular screenings crucial for early detection and prevention of complications. However, when symptoms do occur, they may include:

  • Abnormal vaginal / penile discharge
  • Painful intercourse
  • Pain or burning with urination
  • Blood in urine
  • Bleeding between periods
  • Testicular pain & swelling 
  • Abdominal pain

Australian Screening Guidelines

Given the high prevalence of Chlamydia in Australia, regular screenings are vital for early detection and treatment. The Australian government recommends Chlamydia testing for sexually active individuals under the age of 30, and for those over 30 who engage in high-risk sexual behavior. Testing is easily accessible through various channels, including sexual health clinics, general practitioners, and online services such as STI Clinic Australia.


Accurate diagnosis of Chlamydia is essential for effective treatment. Diagnosis often involves a simple and painless urine test for both men and women. In some cases, swabs may be taken from the cervix or urethra. The process is quick, confidential, and can be done at a healthcare provider's office or through home testing kits, providing individuals with privacy and convenience.


Fortunately, Chlamydia is easily treatable with antibiotics. The most commonly prescribed antibiotics for Chlamydia include azithromycin and doxycycline. It's crucial to complete the entire course of antibiotics as prescribed, even if symptoms disappear before completion. Partners of individuals diagnosed with Chlamydia should also be tested and treated to prevent reinfection.

Complications of Untreated Infection

If left untreated, Chlamydia can lead to severe complications, particularly in women. Untreated Chlamydia in women can result in pelvic inflammatory disease (PID), which can cause long-term damage to the reproductive organs, leading to infertility. Additionally, Chlamydia increases the risk of ectopic pregnancies and chronic pelvic pain.

In men, untreated Chlamydia can lead to epididymitis, an inflammation of the tubes that carry sperm, which can result in fertility issues. Both men and women with untreated Chlamydia are at an increased risk of contracting and spreading HIV.

To Summarize:

In conclusion, understanding Chlamydia and prioritising regular screenings are essential components of maintaining good sexual health. The high prevalence of Chlamydia in Australia underscores the importance of education, awareness, and proactive healthcare. STI Clinic Australia is committed to providing accessible and confidential testing, diagnosis, and treatment for Chlamydia to contribute to the overall well-being of individuals across the country.

Remember, knowledge is power when it comes to sexual health. Stay informed, get tested regularly, and take control of your well-being with STI Clinic Australia.

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