PCa diagnosis involves prostate-specific antigen (PSA) screening (American Academy of Family Physicians, 2017;American Cancer Society,2017; Halbert et al.,2017; Han et al.,2013; Moyer, 2012;Powell, Vigneau, Bock,Ruterbusch, & Helibrun, 2014; Saltzman et al., 2015; Shen & Kumar, 2016; Siegel et al., 2017). The gene discussed is KLK3; the disease is cancer.