Regional Disorders

Lower back pain can be caused by a variety of problems with any parts of the complex, interconnected network of spinal muscles, nerves, bones, discs or tendons in the lumbar spine. … Lower back paincaused by a muscle strain is fairly common and can be quite severe

Ankylosing spondylitis is a type of arthritis that affects the spine. Ankylosingspondylitis symptoms include pain and stiffness from the neck down to the lower back. The spine’s bones (vertebrae) fuse together, resulting in a rigid spine.