Second, we hypothesize and present preliminary data and published reports that T. vaginalis adherence or binding of specific trichomonad adhesin proteins to normal prostate epithelial cells (PECs) triggers a cell-signaling cascade through known proto-oncogenes, PIM1, c-MYC, and HMGA1, that may ultimately lead to prostate carcinogenesis [9]–[12]. The gene discussed is PIM1; the disease is prostatitis.