The knowledge about coeliac disease among Arabs is little; however, the diagnosis of this disease is thought to be more than expected among children and adults. A comprehensive study was designed to explore more knowledge about coeliac disease among Arabs in Iraq as one of the Arabic World countries; therefore many aspects of this anomaly had been tackled. It was carried out to describe the clinical features, endoscopical, histological and serological correlations. Moreover, prevalence study among coeliac patient's relatives and screening study among normal subjects were done.