Lower back pain is extremely common, affecting millions of people every day. But what does it mean when the pain is felt only on one side? One-sided lower back pain could represent a minor issue that will heal on its own, or there could be a more serious underlying problem.


1. Tissue-Related Back Pain

Most instances of one-sided back pain are the result of a soft tissue problem, such as a muscle or ligament injury. Because the back muscles do not cross over the spine, pain tends to remain in the area of the injured tissue. Causes of tissue-related discomfort include sleeping with poor posture, sitting with poor posture for long periods, and overworking or stretching a muscle.

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