The authors examined 94 patients suffering from sexual impotence. On the basis of the history, erection induced with papaverine and the results of Doppler's operation as well as dynamic cavernosography of the penis venous excape was found in the background of impotence of 14 patients. Operation was performed with 13 patients in the course of which the draining vein depicted by cavernosography was ligated. 7 patients have erection spontaneously and 4 on papaverine given intracavernously. The operation was unsuccessful with 2 patients which was due in one case to the existing spongiocavernous fistula and in the other to the development of early collateral circulation.