Sciatica mostly falls under the category of orthopedics. It is a common orthopedic disease, with primary and secondary causes. The secondary type is often caused by compression at the exit point of the lumbar spine and sciatic nerve, so sciatica can be treated in orthopedics or spinal surgery. Primary sciatica, generally caused by inflammation of the sciatic nerve, is managed by neurology. To address sciatica, many hospitals now have departments of pain management. Therefore, sciatica can be treated by four departments: orthopedics, spinal surgery, neurology, and pain management.