Lower back pain can have many causes and sometimes there is a intervertebral disc that is at fault. This video illustrates a disc in the lower back and how it degenerates, eventually bulging causing pressure on the spinal nerve. The end result can be lower back pain and leg pain as is mentioned in the video.
Luckily chiropractic is effective in treating these kind of symptoms and may even be helpful in preventing disc degeneration occurring in the first place.