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Finger dislocation, also called a finger jam, is a common injury. It occurs when the bones of the finger are moved (dislocated) from their normal position. A dislocated finger can occur in any of the joints of any finger, but it occurs most often in the middle knuckle of the little, ring, middle, or index finger.
You probably wonât be able to bend or straighten the finger if it is dislocated. Also: 1  Numbness or tingling with a severe location. 2  The injured finger may appear a pale color. 3  The dislocation may cause a break in the skin where the injury has occurred. 4  If this occurs, you should get medical attention right away.