In-depth information regarding Crohn's disease has been provided in this book, illuminating its diagnosis as well as treatment. The book discusses various important aspects regarding Crohn's disease. It discusses etiopathogeny of Crohn's disease and the latest advances in overall understanding of the disease, specifically, the role of the gut epithelium, alterations of the epithelial crypts and the roles of the different cytokines in the pathophysiology of Crohn's disease. It further elaborates diagnosis of Crohn's disease; in addition to diagnosis of intestinal tuberculosis. The use of mycobacterium avium in Crohn's disease has also been emphasized. It also presents an overview of the management of Crohn's disease with a focus on recent evidence-based medicine recommendations.