[Anamnestic criteria for sexual evaluation in the andrological field].

What is the cause for impotence? In the recent years psychological studies have accredited some insights and modern neurological and vascular technologies have identified some previously idiopathic or misdiagnosed causes. The postulated ratio of psychogenic to organic dysfunction varies from 20:1 to 1:7 and this ratio may vary form one cultural area to the next. The authors underline that the main characteristic of the groups of males complaining of erectile dysfunction is heterogeneity and that the diagnostic procedure for finding the correct etiology may be rather cumbersome. Of primary importance is the patient's history to obtain a precise description of the dysfunction. Graber has suggested a more systematic approach to create a scientific nosology in the area of erectile failure. The phenomenon of morning erections must be inquired as well as the evaluation of the genital reflexes. A series of new diagnostic procedures has been developed but the Authors underline that it is preferable to use noninvasive techniques.