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Trichomoniasis is a sexually transmitted infection caused by a parasite, Trichomonas vaginalis. This condition occurs most frequently in young women. It can also be transmitted through the joint use of towels, washcloths, swimsuits and other underwear. This infection can be the cause of vaginitis in women and urethritis in men.


In women, trichomoniasis results in:
  • abnormal vaginal discharge, usually described as greenish;
  • burning, itching in the vulva and vagina;
  • Pain during urination.

In men, the symptoms include:
  • redness and pain at the urethral orifice;
  • redness and pain in the groove at the base of the glans;
  • pain when urinating;
  • sometimes a discharge from the meatus.


In women a doctor will conduct a pelvic exam and a sample of fluid from the vagina. The parasite can be identified under a microscope, and the diagnosis can be made this way. In men, samples should be taken from the urethra. These will be tested in a laboratory.


Trichomoniasis is treated by taking antibiotics. It is imperative that the partner of an infected person be treated equally, even if the latter reports no symptoms. Avoid sexual intercourse before the end of treatment and full recovery. If infection is proven, other STIs should be screened.


Trichomoniasis is a sexually transmitted disease, it is thus important to protect yourself by always having sex with condoms. People with multiple sexual partners are more susceptible to this infection. It is therefore necessary for them to protect themselves.