Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content

Chlamydia symptoms

2-minute read

A big problem with chlamydia is that it often produces no symptoms, and if left undetected and untreated, complications can occur. People who have chlamydia can still transmit the infection, even if they don't have any symptoms themselves.

When symptoms do occur, they may not appear until several weeks after having sex with an infected person. Women with chlamydia might notice changes with their periods, bleeding or pain during or after sex, pain when urinating, cramping or pain in the lower abdomen, or changes to their vaginal discharge.

Women with untreated chlamydia are at risk of complications such as pelvic inflammatory disease (PID, in which one or more of the reproductive organs in the pelvis become inflamed); chronic pelvic pain; ectopic pregnancy (in which a pregnancy develops outside the uterus, such as in the fallopian tubes); and infertility, due to infection and scarring of the fallopian tubes.

Men with chlamydia are at risk of infections that can result in swollen and sore testicles, discharge from the urethra (the tube through which urination occurs), and difficulty urinating or pain when urinating.

Having oral sex or anal sex with someone who has the infection can result in infection of the throat or the rectum, causing pain and a discharge of pus or mucus.

Pregnant women who are infected with chlamydia can pass the infection to their baby during birth, which could result in the baby developing conjunctivitis and pneumonia.

Last reviewed: June 2017

Need more information?

These trusted information partners have more on this topic.

Top results

Chlamydia

Chlamydia is the most common sexually transmitted infection (STI) in Australia, particularly among young people aged between 15 and 25 years.

Read more on WA Health website

Chlamydia - myDr.com.au

Chlamydia is a sexually transmitted infection (STI). It affects both men and women, and it's spread by having sex with a person who has the infection.

Read more on myDr website

Chlamydia - Lab Tests Online AU

Why and when to get tested for chlamydia

Read more on Lab Tests Online website

Chlamydia and pregnancy

Chlamydia is a bacterial sexually transmitted infection (STI) which affects both men and women. Chlamydia during pregnancy can also cause a number of issues.

Read more on Pregnancy, Birth & Baby website

Chlamydia (genital) - including symptoms, treatment and prevention :: SA Health

Chlamydia is the most common sexually transmitted infection in Australia and for men and women infection may lead to infertility if untreated

Read more on SA Health website

Chlamydia | Family Planning NSW

To find out about chlamydia, how it affects men and women and how to have a test, check out this factsheet!

Read more on Family Planning NSW website

Chlamydia fact sheet | NSW Department of Health

Chlamydia is a sexually transmissible infection. Many people who are infected do not have symptoms of infection but can still spread the disease. Chlamydia can lead to infertility, and other complications if not treated.

Read more on NSW Health website

Psittacosis (Chlamydia psittaci infection) information | myVMC

Psittacosis or parrot fever is a bacterial infection with Chlamydia psittaci. It mostly affects people working with birds and can cause flu-like symptoms.

Read more on myVMC – Virtual Medical Centre website

How to get tested for chlamydia (video transcript)

Read more on WA Health website

Chlamydia

Chlamydia is the most common reported STI among young people in Australia. It can affect both males and females and is caused by a type of bacteria.

Read more on Department of Health website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Government of South Australia, health department logo Tasmanian government logo Government of Western Australia, health department logo