sharp shooting pain running down back of left leg when sitting for long periods of time
Sharp, shooting pain traveling down the back of the leg is typically a symptom of sciatica, which occurs when the sciatic nerve is compressed or irritated. This often stems from a lumbar disc issue or muscle tightness in the glutes that becomes aggravated by the sustained pressure of sitting.
Short answer
Sharp, shooting pain traveling down the back of the leg is typically a symptom of sciatica, which occurs when the sciatic nerve is compressed or irritated. This often stems from a lumbar disc issue or muscle tightness in the glutes that becomes aggravated by the sustained pressure of sitting.
Most likely causes
- Lumbar Disc Herniation: The soft center of a spinal disc pushes through a tear in the tougher exterior, pressing directly on a nerve root in the lower back.
- Piriformis Syndrome: The small piriformis muscle in the buttock tightens or spasms, compressing the sciatic nerve that runs directly beneath or through it.
- Lumbar Spinal Stenosis: A narrowing of the spaces within your spine, which can put pressure on the nerves that travel through the lower back and down the legs.
- Poor Ergonomics: Sitting on a hard surface or a wallet in your back pocket can create focal pressure on the nerve, triggering "nerve tension" or localized irritation.
- Degenerative Disc Disease: Age-related wear and tear on the spinal discs can lead to a loss of disc height, causing the vertebrae to sit closer together and potentially pinch exiting nerves.
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