How Trichomoniasis affects relationships. Trichomoniasis is a sexually transmitted infection (STI) caused by the protozoan parasite Trichomonas vaginalis. The disease can have a negative impact on relationships, both because of the inconvenience and potential health risks it poses. Here are four ways trichomoniasis can affect relationships:
1. It can cause discomfort and inflammation in the genital area, which can lead to...