At some time in our lives, most people have experienced a pain or tingle going down their arms or legs. It is rarely due to a problem in the arm or leg, but the being caused by pressure being placed on the nerve root as it exits the spine.
In the case of sciatica, this usually means that there is pressure being placed on the nerves that exit the lower lumbar spine.
The cause of the nerve root pressure is usually due to a problem with the disc, lumbar or Sacral joint dysfunction or in rarer cases a piriformis syndrome. In all cases chiropractic can reduce the pressure on the nerve roots.