What causes a herniated disk?

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What causes a herniated disk?

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Although a violent injury can damage a disk, problems with disks are often brought on by the normal aging process or by everyday activities, such as lifting heavy objects the wrong way, stretching too hard during a tennis volley, or slipping and falling on an icy sidewalk. Any such event can cause the fibrous outer covering of the disk to break or distort to the point that it presses on a spinal nerve. Sometimes a disk swells, tears, or degenerates without any apparent cause. Genetics has a large role in many disc problems.

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when i walk or bend to much my left hip swells and back will start swelling what can i do to relive the pain and what causes the pain

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