Lesions of the iliac arteries after blunt trauma is uncommon. We observed 5 cases in our unit from 1992 to 1995. This pathology usually is seen in young men and the diagnosis often is made late. A Doppler examination and arteriography should be made in case of clinical doubt. Treatment is exclusively surgical. We present the mechanism of the arterial lesions, the symptomatology caused by the lesions and the therapeutic modalities.