Enterogastric reflux during barium enema examination has been ascribed to various causes includingincompetence of the ileocecal valve, shunt, fistula, excessive barium etc. Recently we have encountered a case ofcomplete enterogastroesphageal regurgitation during barium enema examination performed for the reduction of theileocolic intuosusception in a 6-months-old baby boy. The regurgitation occured only in the first of two bariumenema examinations conducted at one month interval for recurring intussusception. The barium-saline solution usedin the present study was not more than 350ml in quantity. No organic or phsical causes of such a completeregurgitation could be determined.