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 11,403
Moderate 11,528
Mild 5,616
None 2,114
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