Final answer:
Trichomoniasis, caused by Trichomonas vaginalis, often presents with vaginal discharge in women alongside other symptoms like itching and burning, while many men are asymptomatic. Treatment with antiflagellate drugs is essential and sexual partners must be treated concurrently.
Step-by-step explanation:
Trichomoniasis is a common, sexually transmitted infection caused by the protozoan parasite Trichomonas vaginalis. While many men do not show symptoms, women often experience vaginal discharge, which can be accompanied by dysuria, itching, burning, redness, and soreness of the genitalia. These symptoms are indicative of urethritis and can lead to more severe complications if left untreated. It's also important to note that infection increases the risk of transmitting or acquiring HIV and can cause pregnancy complications such as preterm birth. Treatment typically involves the antiflagellate drugs tinidazole or metronidazole and it is crucial that sexual partners are treated simultaneously to prevent reinfection.