Trichomonas vaginalis is most afraid of environments with a pH below 5 or above 7.5, as well as drugs such as metronidazole or tinidazole. Trichomonas vaginalis is suitable for survival in a humid environment with a pH of 5.2-6.6 and a temperature of 25-40°C. The parasite often hides in the vagina, urethra and bladder in women or in the folds of the foreskin and prostate in men. Trichomonas vaginalis dies when the pH value of the environment is below 5 or above 7.5; in addition, metronidazole or tinidazole can also kill this parasite. When Trichomonas vaginalis invades a woman’s vagina, it not only leads to a marked increase in vaginal discharge, which appears thin or purulent, putrid, and changes in color, which are typical characteristics, but it may also prevent the production of lactic acid and devour spermatozoa that enter the vagina, thus inducing infertility. Trichomonas infection during pregnancy may also cause premature rupture of membranes and preterm labor. In order to prevent Trichomonas vaginalis from causing damage to your health, patients should follow the advice of their doctors and undergo treatment in a timely manner.