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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.
Some people develop red bumps or clear fluid-filled bumps that look bubbly and, when scratched, add wetness to the overall appearance. This type of eczema is especially common on the sides of the finger in dyshidrotic eczema and also goes by the name pompholyx. Painful cracks in the skin can develop over time.