Although several reports of femoral neck stress fracture in young military recruits have been published, bilateral femoral neck stress fractures occurring simultaneously is extremely rare. Since misdiagnosis of this condition and resulting error in treatment may lead to significant handicap, we have to bear the possibility of this fracture in mind. Here, we report a case of simultaneous bilateral femoral neck fractures in a 24-year old male recruit to the Japanese Ground Self Defense Force (JGSDF).