Probability of Getting a Stress Fracture

Stress fractures are overuse injuries caused by repetitive loading that exceeds the bone's ability to repair itself. They account for up to 20% of all sports medicine clinic visits and are particularly common in runners (incidence of 5-30% depending on the study), military recruits (1-5% during basic training), and athletes in track and field, basketball, and dance.

The most common locations are the tibia (shin), metatarsals (foot), and fibula. Risk factors include a sudden increase in training volume or intensity (the "too much, too soon" phenomenon), female sex, menstrual irregularities (the female athlete triad), low bone density, inadequate caloric intake, vitamin D deficiency, inappropriate footwear, and running on hard surfaces.

Treatment involves rest from the aggravating activity for 6-8 weeks, with weight-bearing status depending on fracture location and severity. Most stress fractures heal without complications. Prevention strategies include gradual training increases (the 10% rule), adequate nutrition (especially calcium and vitamin D), proper footwear, cross-training, and addressing biomechanical issues. Some high-risk stress fracture sites (femoral neck, navicular, fifth metatarsal) may require surgical fixation due to poor healing potential.