Sciatica most commonly occurs when a herniated disk or a bone spur on the spine compresses part of the nerve. This causes inflammation, pain and often some numbness in the affected leg.
Although the pain associated with sciatica can be severe, most cases resolve with just conservative treatments in a few weeks. People who continue to have severe sciatica after six weeks of treatment might be helped by surgery to relieve the pressure on the nerve.
Sciatica is often characterized by one or more of the following symptoms:
- Constant pain in only one side of the buttock or leg (rarely can occur in both legs)
- Pain that is worse when sitting
- Burning or tingling down the leg (vs. a dull ache)
- Weakness, numbness or difficulty moving the leg or foot
- A sharp pain that may make it difficult to stand up or to walk