Dislocation (joint dislocation) occurs when bones at a joint move from their normal position. It is usually caused by a sudden impact to the joint location. The ligaments almost always become damaged as a result of a dislocation.

Once a joint is dislocated, it may reduce (return to its proper position) on its own, or it may require physical manipulation. Such manipulation should not be attempted without sufficient training, as it is possible to greatly increase the severity of the injury through improper attempts at care. Once reduction is achieved, the joint is held in place through a splint (for straight joints like fingers and toes) or a bandage (for complex joints like shoulders). Even if a dislocated joint reduces on its own, it should be immobilized and medical attention should be sought.

The shoulders, fingers, and wrists are all common place helles for a dislocation to occur.

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