425 drunken drivers were examined for their driving sentability. The amount of persons with known diseases of digestion (or gastro-enteritis) among the drivers were higher than the average among the normal population. The patients with ulcus and gastritis showed higher nervosity, depression and emotional instability during the medical examination. In addition they showed a higher degree of openness and a tendency to lower blood alcohol concentrations at previous drunken driving. While judging their sentability (for driving) no differences could be made among persons with and without gastro-enteritis.