Back pain describes pain or discomfort felt in the upper, middle, or lower back. The pain may extend to the hips and legs as well. The back consists of a complex arrangement of bone, ligaments, joints, muscles, and nerves, and pain can result from a problem with any of these components.
The most common cause is a strain of the back, which is small tear of the back muscles or ligaments. This usually results from a sudden or awkward movement, or from lifting a heavy object. But often, a person can’t remember a particular incident that brought on the pain.
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