Chlamydia infections are caused by bacteria (Chlamydia trachomatis). LGV (Lymphogranuloma venereum) is a special form of chlamydia caused by subtypes of the bacteria. Some infections resolve spontaneously (without treatment). Chlamydia is treated with antibiotics. If left untreated, an infection can lead to inflammations, chronic pain, infertility (for all genders) and tubal pregnancies.

Who does chlamydia affect?

The number of chlamydia infections reported in Switzerland is growing every year.

Chlamydia is more common among young people. The reason for this is biological: their mucus membranes are more permeable and their immune response is weaker.

LGV mostly affects men who have sex with men.

How are chlamydia transmitted?

Chlamydia can be transmitted through almost any sexual practice, but especially oral, vaginal and anal sex. The bacteria are found in infected mucus membranes.

Chlamydia can also be transmitted via hands or sex toys. It is unlikely to become infected via toilet seats, used towels or other materials.

During childbirth, chlamydia can be passed on to the newborn, which can cause eye inflammation (conjunctivitis).

How can I protect myself?

Condoms reduce the risk of contracting chlamydia. However, an infection is still possible and it’s nothing to be ashamed of. Anyone who has sex can become infected. It is important to take regular tests to ensure early detection of a potential infection.

What symptoms can appear?

Chlamydia is often asymptomatic or only produces mild symptoms. Symptoms usually appear two to six weeks after infection:

  • Pus-like discharge from the genitals or anus
  • Pain when urinating
  • Itching or redness on the genitals, anus or in the throat
  • Vaginal bleeding between periods

How do they test for chlamydia?

A chlamydia infection is detected by swabbing all three potential sites of infection: the throat, anus and genitals. In order to get a reliable result, it is important for all three parts of the body to be swabbed – regardless of the sexual practices.

LGV mostly affects men who have sex with men. In the event of a chlamydia infection, these people are advised to get tested for LGV. If an LGV infection is discovered, the treatment must be adjusted in order to be successful.

How are chlamydia treated?

Chlamydia is treated with antibiotics. It is important to take the medications as prescribed and complete the full course, even if the symptoms disappear. Otherwise, the pathogens may become resistant (invulnerable to medication).

Inform your sexual partners of your infection so that they can get tested. This will prevent them from reinfecting you or passing the infection on to others.