Traumatic etiology in aneurysms is very rare. After arterial trauma we usually find pseudo aneurysms. True aneurysms are due to deterioration of the arterial wall in small and long-term repetitive trauma. Pseudo aneurysms are usually described on radial and cubital artery in patients who work with vibrating tools ("hypothenar and thenar hammer syndrome") and on axilar artery in those who use axilar crutches. We present a case of a woman with a true aneurysm of the femoral artery developed due to repetitive trauma of the femoral region at the work place. The patient presented as an emergency, with ruptured aneurysm and she underwent an emergency operation. The diagnosis was established late by histopathological examination. This is the first case of posttraumatic true aneurysm with this location. True aneurysms should be considered in repetitive trauma regardless of anatomical region.