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Disks can bulge from their position in the spine and press on a nerve.
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Pain may be sharp or dull and achy, and it may radiate to your bottom or down the back of your legs ( sciatica). Other times, you may not know what caused the pain. Sometimes, pain occurs after a specific event, such as bending to pick something up. Symptoms of lower back pain can come on suddenly or appear gradually. What are the symptoms of lower back pain?