Muscle injuries, nerve pain, and kidney inflammation can all cause lower left back pain. Learn about these causes and more.

The sciatic nerve (SN) originates from the L4-S3 roots in the form of two nerve trunks: the tibial nerve (TN) and the common peroneal nerve (CPN). The TN and CPN are encompassed by a single ...

Sciatica is the layman's term for neurologic symptoms that typically occur when nerves are being compressed or damaged, says Dr. Michael Gerling, American Board Certified Orthopedic Spine Surgeon.