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Bone Bruise

Definition

A bone bruise is a traumatic injury to a bone that is less severe than a bone fracture, causing blood and fluid to build up near the injured bone.

Bones have a cortex, or outer shell, made of interconnected fibers. Calcium fills the spaces between the fibers.If enough of those fibers break during a trauma, a bone fracture will result, but a bone bruise occurs when a smaller portion of the fibers break. This can result in pain, swelling and change in color of the affected area.

Typical recovery time

Bone bruises do not show up on X-rays and must be diagnosed with MRIs. Depending on depth and severity, they may heal in as little as a few weeks or require as long as six months.