Sciatica is a condition caused by compression of the spinal nerve roots of the sciatic nerves.
Symptoms usually manifest on one side of the body only. They may include lower back pain, pain in the buttocks, numbness in these areas and pain and weakness in various parts of the leg and foot. Sometimes there is a sensation of pins and needles or tingling. Occasionally pain may radiate above the knee and a person might have difficulty moving or controlling the leg.
Causes of Sciatica may include: