The authors have presented the importance and technics of operative treatment of femoral aneurysms as the only correct method of treatment aiming at prevention of complications which are the consequence of the natural course of the disease. The majority of current operative technics involve total or partial resection of an aneurysm and reconstructive operative approach (graft interposition, bypass) aiming at establishment of the arterial continuity. In the same time the authors have emphasized the importance of echosonographic diagnostical procedure which has even some advantages over angiography, especially in cases with normal central recanalization of the clot.