Understanding the basic anatomy of the five lumbar bones ... The lumbar spine includes the five vertebrae in your lower back. Muscles, disks, ligaments, nerves, and blood vessels also help support ...

Lumbar stenosis is a common spinal condition that affects millions of people, particularly older adults. It occurs when the spinal canal located in the lower back experiences narrowing, putting ...

Constipation can sometimes cause back pain. The pain occurs when the mass of feces presses on the nerves in the lower back, called the sacral nerves. A person could also develop back pain as a ...