Chlamydia is the most common STI in the Netherlands. Women between 20 and 25 are at the most risk. This STI can be effectively treated.


A chlamydia infection often shows few if any symptoms. It can be effectively treated. Untreated, it can have serious consequences.

In men:

  • Inflammation of the epididymis
  • Inflammation of the prostate
  • Reduced fertility

In women:

  • Inflammation of the fallopian tubes
  • Inflammation in the pelvic area
  • Reduced fertility


Men Women
Pain or burning sensation when urinating
Discharge from the urethra, particularly in the morning Pain and bleeding during and after sex
Pain in the scrotum Bleeding between menstrual periods
  Increased or altered vaginal discharge
  Intense abdominal pain, with or without fever
  Inflammation of the pelvic region with fever
Irritation or itching in the anus, (bloody) discharge when defecating and diarrhoea
  In pregnant women: premature birth of the baby and low birth weight
  Chlamydia in the mother can cause eye and lung inflammation in babies




Have I got it?

Chlamydia does not always show (immediate) symptoms. But someone with chlamydia can pass the infection on in the meantime.

An STI test will show whether you have chlamydia. This is done through a urine test or a smear test.

STI's with similar symptoms:


Chlamydia can be properly treated with pills, but these do not protect you from a new chlamydia infection later.


  • Go to the doctor for an STI test and treatment
  • Notify sexual partners from the previous six weeks about your symptoms
  • Chlamydia but no symptoms? Notify sexual partners from the last six months
  • Have another test within a year