Crohn’s disease (CD) is an uncommon disease in Thai population, leading to delay in diagnosis due to lacking of familiarity, which may increase disease complications. One of the most problematic issues is to differentiate CD from intestinal tuberculosis (ITB), and many scoring systems have been introduced since 2006. However, competency of diagnosis of CD in the latter period is still unknown in Thailand. Our aim is to compare this competency in the period of 2000-2006, 2007-2012, and 2013-2018.