Sciatica is characterized by compression or irritation of the sciatic nerve. Pain follows the course of the sciatic nerve.

Common causes of sciatica include the following:
•Spinal disc herniation
•Degenerative disc disease
•Lumbar spinal stenosis
•Piriformis syndrome

Treatments for sciatica can include epidural steroid injections, piriformis block, transforaminal steroid injections and spinal cord stimulation.