Musculoskeletal Disorders
8 min read
Why Does Sciatica Occur? Nerve Compression
By Dr. Navaneeth K. Unni•Published on 2026-07-01•Patient Group: Adults
Clinical Overview & Pathophysiology
Sciatica refers to pain that radiates along the path of the sciatic nerve. It is typically caused by compression or irritation of the nerve roots in the lumbar spine.
Key Clinical Facts & Indicators
- Radiating Leg Pain: Sharp, shooting pain traveling from the lower back through the buttock and down the leg.
- Numbness & Tingling: Numbness or a pins-and-needles sensation in the leg or foot.
- Aggravation Modalities: Pain that worsens when sitting, coughing, or bending forward.
- Nerve Root Compression: Disc herniation or bone spurs pressing on the spinal nerve roots.
Lifestyle & Nutritional Guidelines
Manage sciatica by avoiding prolonged sitting and heavy lifting. Practice gentle lumbar extension exercises. Sleep on a firm mattress and maintain correct posture. Use our Diet Planner for bone and joint health support.
Frequently Asked Questions
Q: What is the most common cause of sciatica?A herniated or bulging disc in the lumbar spine (typically at L4-L5 or L5-S1) is the most common cause.
Q: Does sciatica require surgery?Most cases (over 90%) resolve successfully with conservative management, physical therapy, and constitutional care within 6-12 weeks.
✓Medically reviewed by Dr. Navaneeth K. Unni
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