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Anything that puts pressure on your back muscles and nerves can cause pain, according to the University of Washington Orthopaedics and Sports Medicine Web site. Bad posture continual stress and strain, weak abdominal muscles, and extra weight commonly cause back pain. In many cases, back pain may result from degenerative changes in the back that occurs over the years. Back pain can also be caused by medical conditions affecting the spine, bones, muscles, or joints. |
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