Sciatica Causes and Symptoms
January 21, 2006
Sciatica—pain along the large sciatic nerve that runs from the lower back down the back of each leg—is a relatively common form of low back pain and leg pain. This pain along the sciatic nerve can be caused when a root that helps form the sciatic nerve is pinched or irritated.
Sciatica is usually caused by pressure on the sciatic nerve from a herniated disc (also referred to as a ruptured disc, pinched nerve, slipped disk, etc.). The problem is often diagnosed as a "radiculopathy", meaning that a disc has protruded from its normal position in the vertebral column and is putting pressure on the radicular nerve (nerve root) in the lower back, which forms part of the sciatic nerve.
Sciatica occurs most frequently in people between 30 and 50 years of age. Often a particular event or injury does not cause sciatica, but rather it may develop as a result of general wear and tear on the structures of the lower spine. The vast majority of people who experience sciatica get better with time (usually a few weeks or months) and find pain relief with non-surgical treatments.