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What is sciatica?
Sciatica describes pain along the sciatic nerve pathway, usually from a lumbar nerve-root problem. Leg pain, numbness, tingling, or weakness may travel below the knee and should be distinguished from hamstring, hip, or peripheral nerve symptoms.
The same label can behave differently from one person to the next. The timing, location, type of symptoms, injury mechanism, and response to movement help distinguish a local tissue problem from referred pain, nerve involvement, or a pattern that should be evaluated elsewhere first.
How sciatica may show up
People do not need every sign below to fit this pattern. They are useful clues to discuss during an evaluation, especially when paired with what changes the symptom and what activity has become difficult.
- radiating buttock and leg pain
- tingling or numbness
- symptoms below the knee
- pain changed by spine position
Why it can start or persist
A contributor is not always a single cause. Tissue capacity, recovery, the size of a recent load change, and the mechanics of the task can overlap. For sciatica, the history commonly examines:
- 1lumbar disc herniation
- 2narrowing around a nerve root
- 3inflammation or mechanical sensitivity
How the pattern is examined
An assessment begins with the story, then tests the findings that can change a decision. For this presentation, that usually means looking at the items below and comparing them with the demands of work, daily life, or sport.
Imaging can be useful when the history or examination indicates it, but a scan is not a substitute for matching the finding to symptoms, function, and the clinical screen.
Clinically reviewed
Reviewed by Dr. Tamara Lovelace, DC, DACBSP, ICCSP, Chiropractic Sports Doctor and clinic director, on August 25, 2026.
This page explains what we look at and what care can involve. It is not a diagnosis, and it cannot replace an examination. Bring the problem in and a provider will tell you what is going on.
