We report a case of 50-year-old man with high flow priapism after blunt perineal trauma. Patient evaluation included intracavernal blood-gasometry, cavernography, color flow Doppler sonography, and internal pudendal arteriography. Although conservative treatment had been tried by an alpha-adrenergic agent, temporary effect was only obtained. We could successfully treat the priapism by percutaneous embolization of the left internal pudendal artery with autologous blood clot and Gelatin. 3 months after the embolization, erectile function of the patient recovered. High flow priapism as reported to date in the literature is also briefly reviewed.