The hand is made up of 27 bones that form the wrist, palm, and fingers. Fingers can easily injure from daily activities, and fractures are common injuries that can occur. Injury to the metacarpal bone that connects to the little finger are the most common fractures, accounting for about one-third of all hand fractures. The fracture may be simple or involve a shift in the position of the bone or joint. There are also more severe fractures where the bone is crushed into many pieces.