sharp shooting pain running down back of left leg when sitting for long periods of time

Reviewed by operators of The Joint Chiropractic Rosemead — a licensed chiropractic clinic. Not individually reviewed per response; not medical advice.

Educational information only — always confirm with a licensed provider.

Summary

Sharp, shooting pain that radiates down the back of the leg while sitting is often a sign of nerve irritation or compression. This sensation, commonly referred to as sciatica, usually stems from an issue in the lower back (lumbar spine) or the gluteal muscles.

Most likely causes

Sciatica: Compression or inflammation of the sciatic nerve.
Lumbar Disc Herniation: A bulging or herniated disc in the lower back pressing on a nerve root.
Piriformis Syndrome: A small muscle in the buttocks tightening and pinching the sciatic nerve.
Poor Posture/Ergonomics: Prolonged sitting on hard surfaces or with a rounded lower back.
Spinal Stenosis: Narrowing of the spaces within your spine, which can put pressure on nerves.

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