About trichomoniasis

Approximately 70% of those who are infected with trichomoniasis do not notice any symptoms at all. Symptoms may also come and go.

Trichomoniasis is a sexually transmitted genital infection caused by a parasite. It can be spread both through vaginal and anal intercourse. The sooner you get treatment, the lower the risk is of transmitting (spreading) trichomoniasis to someone else. Trichomoniasis is relatively rare in Sweden, and can be difficult to diagnose as symptoms resemble other common sexually transmitted diseases. Internationally, trichomoniasis is a common sexually transmitted disease.

Trichomoniasis is transmitted, spread, when mucous membranes come into contact with each other when you have sex with someone else; often through vaginal and anal intercourse without a condom. The disease is also transmitted via sperm and vaginal secretions.

Symptoms of trichomoniasis 

Approximately 70% of those who are infected with trichomoniasis do not notice any symptoms at all. Symptoms may also come and go. Women with a trichomoniasis infection may have abnormal smelling discharge. They may also experience burning, redness and tenderness in their genitalia as well as irritation during urination. The symptoms in men appear as itching or irritation of the urethra as well as burning after urination or ejaculation. Secretion from the penis may also occur. A trichomoniasis infection may also cause discomfort during sex.

Trichomoniasis infections may also lead to more serious complications such as increased risk of infection with the HIV virus, and trichomoniasis infection in pregnancy is associated with premature delivery and low birth weight. Without treatment, the infection may last for several months or even years, so it is important that a diagnosis is made and that treatment is started.


Reviewed: 2017-03-31

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