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- Sciatica facts
- What is sciatica?
- What are causes of sciatica?
- What are risk factors for sciatica? What are sciatica symptoms and signs?
- How is sciatica diagnosed?
- What are treatment options for sciatica?
- What are treatment options for sciatica? (Continued)
- What is the outlook (prognosis) for patients with sciatica? Is it possible to prevent sciatica?
What are causes of sciatica?
While sciatica is most commonly a result of a lumbar disc herniation directly pressing on the nerve, any cause of irritation or inflammation of the sciatic nerve can produce the symptoms of sciatica. This irritation of nerves as a result of an abnormal intervertebral disc is referred to as radiculopathy. Aside from a pinched nerve from a disc, other causes of sciatica include irritation of the nerve from adjacent bone, tumors, muscle, internal bleeding, infections in or around the lumbar spine, injury, and other causes. Sometimes sciatica can occur because of irritation of the sciatic nerve during pregnancy.