Boxer's Fracture
Boxer's fracture is the common name for a break in the end of the small finger metacarpal bone also known as a Fifth Metacarpal Fracture .
It is usually caused by punching something harder than the hand, such as a wall or another person's head. The end of the metacarpal bone takes the brunt of the impact, which usually breaks through the narrowest area near the end (the "neck"), and bends down toward the palm. | 
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