“…With regard to reports of delayed perforated aortic injury, previous reports have described cases where late displacement of rib fractures occurred in conjunction with a flail chest near the descending aorta, leading to aortic perforation and resulting in a fatal outcome. [ 4 ] Although the instability of the chest wall was not confirmed in the present case, the proximity of the enlarged ascending aorta to the sternal fracture due to aging and hypertension, along with the possibility of the aorta being subject to movement during its own pulsation,[ 5 ] may have contributed to the delayed aortic injury. Furthermore, considering the potential movement of the thoracic cage during activities like handwashing after using the restroom, it is plausible that such movements could have caused the delayed aortic injury.…”