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The term "sciatica" usually describes a symptom—pain along the sciatic nerve pathway—rather than a specific condition, illness, or disease. [4] Some use it to mean any pain starting in the lower back and going down the leg. [4]
What is the sciatic nerve? The sciatic nerve is about 2 centimeters in diameter and consists of the L4 to S2 nerve roots, which join at the pelvis and run down the back of the thigh, says Chellsen.
Low back pain or lumbago is a common disorder involving the muscles, nerves, and bones of the back, in between the lower edge of the ribs and the lower fold of the buttocks. Pain can vary from a dull constant ache to a sudden sharp feeling. [ 4 ]
Sciatica is a condition characterized by deep pain occurs in the back and/or legs. It is the result of a compressed sciatic nerve, which runs from the lower back to just below the knee.
The clinical signs may involve unilateral or bilateral buttocks pain that fluctuates throughout the day, the absence of lower back pain, buttocks or sciatica pain when in the sitting position (especially for prolonged periods), sciatic pain with fluctuating periods without pain through out the day, buttocks pain near the piriformis. [32]
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Pain caused by compression or irritation of the sciatic nerve by a problem in the lower back is called sciatica. Common causes of sciatica include the following lower back and hip conditions: spinal disc herniation, degenerative disc disease, lumbar spinal stenosis, spondylolisthesis, and piriformis syndrome. [5]
This is due to the nerve pathways from those joints—the brain sends "help me" signals not to the source itself but along the nerve pathway, which leads to referred pain. ... one 2023 study found ...
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