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First of all inflammation isn't the cause of sciatica. Instead it's one of the results of sciatica.
I actually checked online before posting. It can indeed cause it too😉
No. Read it again. Here's one for you
Sciatica most often happens when a herniated disk or an overgrowth of bone puts pressure on the lumbar spine nerve roots. This happens "upstream" from the sciatic nerve. This causes inflammation, pain and often some numbness in the affected leg. https://www.mayoclinic.org/diseases-conditions/sciatica/symptoms-causes/syc-20377435
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Interesting. Some other sources also list inflammation as cause, like this one:
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