A march stress fracture is a small break in a metatarsal bone of the foot that occurs without a major traumatic episode. There are five metatarsal bones in each foot. They are located in the area between your toes and your ankle. They were called march fractures because they were first seen in military recruits because of excess marching. These fractures still occur in that group.

March Stress Fracture
Stress fracture foot
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A march stress fracture is an overuse injury caused by repetitive stress to the foot.