05 Nov Sciatica or SI Joint Pain? How Doctors Tell the Difference
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Pain deep in one buttock that runs down the back of the thigh can make a long drive miserable. Friends and coworkers call that kind of pain sciatica long before anyone examines it. The word points a workup toward a pinched nerve in the lower spine and, often, an MRI of the discs.
The sacroiliac (SI) joint sits where the lower spine meets the pelvis. Pain from that joint can spread into the same areas as a pinched nerve, even when the lumbar discs aren't responsible, and sometimes both problems are present.