What it is
Sciatica is the name people give to a pain in the buttock, leg or foot brought on as a direct result of some form of irritation to the sciatic nerve. The sciatic nerve is the longest nerve in the body. It runs all the way from the lower back splitting at the base of the spine and terminating in the foot.
The discs which cushion the vertebrae in the lower back become progressively thinner and harder as we get older. This stresses the lower back and often causes a variety of lower back pain disorders, including sciatica.
Sciatica is usually caused by a prolapsed or 'slipped' disc bulging and pressing on to a nerve. It doesn't usually cause permanent nerve damage since the spinal cord is not present in the lower part of the spine and a prolapsed or herniated disc in this area does not pose a risk of paralysis.
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