Which STD begins with a tiny parasite and can cause genital itching or burning, urinary discomfort, and discharge?

Trichomoniasis is caused by a microscopic parasite called Trichomonas vaginalis. It can cause genital itching or burning, discomfort when urinating, and unusual discharge. HIV, HPV, and syphilis are caused by viruses or bacteria, not by this parasite.

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