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Causes
Most of the time, the exact cause of back pain is not easily determined. Since about 90 percent of cases remit on their own, it is not always important to find a precise anatomical cause.
People under age 60 tend to have acute backaches, that is, backaches that are sudden and short lived. These most often result from a sprain, strain, spasm, or, less frequently, a degenerated or herniated disk. In older people, chronic conditions such as degenerative changes of the spinal bones and disks, vertebral compression fractures, spinal stenosis, and spinal deformities are the most common sources of back pain.
This section describes the major causes of back pain in adults, including:
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