Low back pain, or lumbago, may be caused by stress from lifting, bending or reaching for something. It may be related to arthritis of the spine, problems with tendons or ligaments in and around the spine or malpositioning of vertebrae. Occasionally, no causative factors can be identified.

Symptom severities
Severe 10,992
Moderate 11,049
Mild 5,388
None 2,013
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