Proximal fibular stress fractures are rare injuries that usually result from jumping and running activities of military recruits and athletes. This article describes a female university athlete with proximal lateral leg pain diagnosed by means of a triphase bone scan as proximal fibular stress fracture and proximal to middle one-third tibial stress fracture. This case highlights the need to examine not only the sport but also the athlete's training habits to identify possible factors contributing to the injury. Body type, biomechanics, and gender are also possible etiologic factors.