The use of a condom is essential to protect yourself and your partners against STDs. If you have any concerns, you should have an STD screening test. In the event of an infection, make sure you follow the correct treatment and inform your sexual partners.

Chlamydia in Belgium 

According to Sciensano:

  • In Belgium, the average number of registered cases of Chlamydia is increasing by 16% each year. 
  • In 2014, 5,605 cases of Chlamydia were diagnosed (10.2 cases per 100,000 inhabitants).
  • Young people aged between 20 and 24 are most affected, with 1,350 cases in women and 472 in men.
  • In 2013, 50% of patients suffering from Chlamydia are under 25 years old.
  • In 2013, ⅔ patients affected by a Chlamydia or Gonorrhea infection were diagnosed without having reported any complaint or symptom.

Please note! These statistics are subject to change. Consult Epistat.

Chlamydia in Europe

According to the European Center for Disease prevention and Control (ECDC) in 2013 :

  • Chlamydia is the most frequently diagnosed STD in Europe
  • 384,555 cases of Chlamydia have been diagnosed in Europe (26 EU countries)  that is an incidence of 182 cases per 100,000 inhabitants
  • Chlamydia was most frequently diagnosed in women with a total incidence of 207 cases diagnosed for every 100,000 women and 153 for men 
  • the real figure is certainly higher due to the asymptomatic nature of the infection (absence of symptoms)
  • ⅔ cases of Chlamydia have been diagnosed in young adults aged between 15 and 24 with a higher number in young women aged between 20 and 24 (1,717 cases per 100,000 inhabitants)
  • heterosexual transmission represents 88% of the cases diagnosed.


Sciensano publishes two reports each year documenting the evolution of STDs in Belgium. The reports are based on data-collection networks.


There are currently no events associated to this health topic

Other sources of information

There are currently no external links associated to this health topic

In the media

There are currently no media associated to this health topic

QR code

QR code for this page URL