Where Arm and Leg Pain Comes From
Arm or leg pain is hard to self-diagnose. If the injury was obvious — a joint stressed by a repetitive task at work, a shoulder dislocated in sport, a nerve pinched by sleeping awkwardly — the source may be clear enough. But when the pain builds slowly with no clear injury behind it, or when pain from an old injury has become chronic and confusing, it takes a proper assessment to find the source.
Bursitis, arthritis and tendinitis are all possibilities, but misalignments — subluxations — of the vertebrae in the neck and lower back are behind the large majority of chronic arm and leg pain. When the spaces where nerves exit the spine narrow because vertebrae or discs have shifted, the nerve becomes irritated and can produce pain along its entire path. Patients are often surprised to learn those nerves run from the spine all the way to the tips of the fingers and toes.
That is why an injury to the spine can create pain anywhere along the length of an arm or leg. Sciatica, which runs from the hip down to the foot, is the clearest example of the pattern.
