“…Barriers dealt in the literature are lack of sufficient knowledge, finding unnecessary, embracement, pain, bowel preparation, role of physician, length of screening interval and anxiety about negative side effects colorectal cancer screening tests (Janz et al, 2003;Green and Kelly, 2004;Greiner et al, 2004;Klabunde et al, 2006;Dam et al, 2010;Jones et al, 2010;Messina et al, 2012). The study of Greiner et al (2004), emphasizes the patient motivation as the most important factor and states that the most important barrier is the agreement of the patient to the colorectal cancer screening tests. It is visible that the barriers on participating to the colorectal cancer screening programs are universal.…”