Bottom of back hurts when lying down
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Understanding Back Pain When Lying Down
Mattress Firmness and Low-Back Pain
One of the primary factors influencing back pain when lying down is the firmness of the mattress. A study assessed the impact of mattress firmness on chronic non-specific low-back pain. Participants were assigned either firm mattresses (H(s)=2.3) or medium-firm mattresses (H(s)=5.6) and evaluated over 90 days. The findings revealed that medium-firm mattresses significantly improved pain while lying in bed, pain on rising, and overall disability compared to firm mattresses. Patients using medium-firm mattresses reported less daytime low-back pain and discomfort while lying in bed or upon rising.
Abdominal Aortic Aneurysm (AAA) and Back Pain
Another potential cause of back pain when lying down is an abdominal aortic aneurysm (AAA). A case study described a patient with chronic low-back pain that was notably worse when lying supine or in a lateral decubitus position. This pain diminished when the patient lay prone. The study highlighted that AAA could present as low-back pain that intensifies during rest, particularly when lying down.
Conclusion
For individuals experiencing back pain when lying down, considering the firmness of their mattress could be crucial. Medium-firm mattresses have been shown to alleviate pain and improve disability outcomes more effectively than firm mattresses. Additionally, persistent back pain that worsens when lying down could indicate underlying conditions such as an abdominal aortic aneurysm, warranting further medical evaluation.
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