I've dealt with lumbar back pain for a few years on and off, I think the lumbar region is the most common area of the back for pain.
the lumbar region is sometimes referred to as the lower spine
Yes that is correct, and the middle back is usually called the thoracic region, while the neck area is called the cervical region.
 A lumbar strain is a stretch injury to the ligaments, tendons, and/or muscles of the low back.
back. Tumors of the vertebrae, neural tissues and adjacent structures can also manifest as back pain.
Back pain is common, with about nine out of ten adults experiencing it at some point in their life, and five out of ten working adults having it every year. Some estimate up to 95% of people will experience back pain at some point in their lifetime. It is the most common cause of chronic pain, and is a major contributor of missed work and disability. For most individuals, back pain is
, the lumbar and cervical types are more common than the rarer thoracic stenosis. Although stenosis can be found isolated in one region of the spine, developmental spinal stenosis will most likely involve both the cervical and lumbar sections.
The age that people develop spinal stenosis is correlated with change in the joint’s biomechanics. Because of this, there has been a recent increasing trend seen by physicians, of lumbar spinal stenosis is being more commonly diagnosed in older patients. Low back pain accounts for 17% of all physician visits of