Sciatica also called Sciatic Neuritis. Sciatica pain affecting the back, hip, and outer side of the leg, caused by compression of a spinal nerve root in the lower back, often owing to degeneration of an intervertebral disc.
It's usually caused when a herniated disc or bone spur in the spine presses on the nerve. Pain originates in the spine and radiates down the back of the leg. Sciatica typically affects only one side of the body. Medication for pain and physiotherapy are common treatments.