Spinal stenosis is a condition  where the space around the spinal cord begins to narrow causing the spinal cord  and nerve roots to become compressed. This condition is fairly common due to the  natural aging process.

The neck and lower back are the two most common  locations for spinal stenosis. If located in the neck, it is called cervical  spinal stenosis. If located in the lower back, it is referred to as lumbar  spinal stenosis.

There are two types of spinal stenosis: primary  and acquired. Primary spinal stenosis is rare and means that one has had it  since birth. Acquired spinal stenosis typically comes from a spinal injury or  disease. The most common cause of spinal stenosis is osteoarthritis, a  degenerative cartilage disease due to aging.