Chlamydia (sexually transmitted disease)

Chlamydia is an STD (sexually transmitted disease). This STD is most common in the Netherlands, this can be with or without complaints.

The STD chlamydia

  • Chlamydia
  • Complaints that may arise
  • Possible consequences
  • Therapy
  • Other types of STDs



Chlamydia is an STD that is most common in young people. 60,000 people contract this STD every year, making this STD the most common in the Netherlands. You can contract Chlamydia by having sex without a condom. Chlamydia is a bacterium that occurs in the mucous membrane of the vagina, penis or anus. Chlamydia can rarely be passed on to another person through oral sex. In people with Chlamydia, 70% of cases do not experience any complaints. This STD can cause inflammation in the urethra, anus or cervix.

Complaints that may arise

In women:

  • Discharge through the vagina / anus
  • Burning sensation/pain when urinating
  • Losing blood between menstruations
  • Losing blood after sex
  • Pain during sex
  • Painful feeling in lower abdomen


In men:

  • Discharge from the urethra
  • Pain when urinating
  • Sores/warts on the penis or anus


Possible consequences

Chlamydia can cause a number of unpleasant things. Therefore, if you have even a slight suspicion, make sure you go to your doctor to get yourself tested for Chlamydia. If you are on time you could still be treated well.

In women:

  • Infertility
  • Inflammation of the uterus
  • Inflammation of the fallopian tubes
  • Chronic abdominal pain
  • Ectopic Pregnancy


In men

  • Epididymitis
  • Inflammation of the prostate
  • Severe pain in the scrotum
  • Pain in the groin
  • Infertility (very rare)



The treatment to combat Chlamydia is with antibiotics (tablets). This is only possible if you are there on time. So take your complaints seriously, even if you think they are nothing! It is very important that you complete the entire course of antibiotics, even if the symptoms have disappeared earlier. If you have multiple partners, it is very important to let them know that they should also be tested. During treatment it is wise not to have intercourse so as not to infect the other person. If you still want to have sex, use a condom. If the complaints do not go away after antibiotic treatment, it is wise to have yourself examined again.

Other types of STDs

Genital Warts

These are warts around the genitals or anus. About 22,000 people are infected with it every year. These genital warts are also caused by unsafe sexual contact. It may take a while for the warts to become visible, this can even take a year after you have had unsafe sexual contact. This STD appears as small warts together, and later spread and become larger. These warts often do not hurt, but they are very itchy. These warts can also be on the inside of the vagina/anus and may not even be noticed.

Genital herpes

This STD is characterized by blisters or wounds around the genitals. About 12,000 people are infected with it every year. This STD is transmitted by coming into contact with wounds or blisters, or the mucous membrane of the vagina, penis, anus or mouth.


Gonorrhea is also called ‘drip’. About 6,000 people are infected with it every year. Men may suffer from yellow-green/watery discharge from the urethra. It also hurts when urinating. A serious consequence in men is inflammation of the epididymis. Women often have little or no complaints. Sometimes a woman has a little more discharge than she normally would. A serious consequence in women is inflammation of the fallopian tubes.

Hepatitis B

The Hepatitis B virus causes inflammation of the liver. About 2,000 people are infected with it every year. This STD is also transmitted through unsafe sexual contact. The virus passes through the mucous membranes of the genital tract via the bloodstream to the liver. Inflammation takes place in the liver cells. The complaints are very variable. Sometimes it can cause permanent damage in the long term. Hepatitis B is very contagious and can even cause liver cancer.

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