Trichomoniasis Causes

Trichomoniasis Causes

Trichomoniasis causes

     Trichomoniasis (or, more directly, pelvic) infection is quite common, with a very high transmissibility, affecting, at one time or another of the sexual life, approximately 30% of sexually active women and 25% of sexually active men. It is a urogenital infection which affects only the genital and urinary ways, primarily the urethra in men and in women the urethra and vagina. Often it is the mate of other sexually transmitted infections.

     The trichomoniasis cause is a small parasite (Trichomonas vaginalis - unicellular protozoan) which is transmitted sexually from an infected partner. In women, the parasite usually infects the vagina, urethra, cervix, uterus, bladder and genital area glands such as Bartholin's glands or Skene's glands. In men the infection develops at the level of urethra or the prepuce in uncircumcised men.

     Trichomonas vaginalis is a parasite the size of a white cell (3-18 microns), unicellular. The parasite sit in the urinary ways under a saprophytic form (it is not pathogenic), which produces no symptoms. It can become pathogenic only when associated with bacteria like bacillus coli, streptococcus, staphylococcus, etc. In the laboratory it was noticed that this parasite does not grow on culture media unless accompanied by bacteria, which confirm the hypothesis on its specific pathogenicity.

Risk factors:

     Sexually active women, aged between 16 and 35 years are most at risk of pelvic infection. It is assumed that one of 5 women in this category will be infected at some point, having unprotected sex being the major trichomoniasis cause.

     Risk of infection increases if:

  • Do not use a condom during sex with a new partner or a partner who is supposed to have been exposed to STDs; the parasite can be transmitted even if the infected person shows no symptoms
  • There are multiple sexual partners, who increase the risk of exposure to sexually transmitted diseases; teenagers and young adults have higher risk of pelvic infection and other sexually transmitted diseases because their sex partner, often have had other partners before, which could have been infected.

     Once with pelvic infection, other sexually transmitted diseases can be taken, such as gonorrhea, chlamydia infection, HIV or syphilis. If one of these diseases is diagnosed, we recommend testing for other sexually transmitted diseases, to treat all at the same time. Some of these diseases which are transmitted during sexual intercourse, as HIV infection, are life-threatening. There are studies that showed increased risk of pelvic infection with HIV. Women who are infected with trichomoniasis are at increased risk of making other vaginal infections. Approximately 20% of these women have concomitant vaginal and other infections.

     As a sexually transmitted disease, it falls into the category of venereal diseases. Therefore, inadequate hygiene and not treating the disease lead to its spread. It can also be acquired outside sexual intercourse by contact with infected linen or cannula. The disease can be transmitted to both male (seminal vesicles) and women (vagina). Inadequate hygiene is also one of the trichomoniasis causes.


     The diagnosis is put on a microscopic examination of vaginal or urethral secretions or, in more difficult cases, the examination of a culture of secretions or urine.


     Chronic trichomonas urethritis may be complicated if not treated, with small polypoid formations that appear on the outline of the bladder. The parasite is quickly destroyed by heat or cold and an acidic pH.

Prevention, protection

     The safest way to prevent (except abstinence, which you do not like, huh?) is using a condom during sex, being known that unprotected sex is what causes trichomoniasis. Then you must have a no risk behavior, to always have a personal towel, never exchange underwear, avoid the toilets where cleaning is not so good.