There are many possible causes of back pain.
You can have a herniated disc do to major trauma like a automobile accident
or, injury to the muscle and bones due to repetitive stresses.
Another likely cause is inflammation.
Inflammation can be triggered by our daily nutritional intake.
This is one of the reasons anti-inflammatory diets and supplements have been stressed over the past few years.
check it out:
Diet and Back Pain: What’s the Link?