Lower left back pain is muscle, organ, or nerve-related. This article helps you get closer to what’s causing continued pain ...

Here’s how it works. If back pain keeps you up at night, you’re not alone. It’s estimated that up to 80 percent of American adults will experience back pain at some point in their lives.

That represents an additional 9.82 million Americans whose disability is attributable to pain. The specific pain conditions most likely to contribute to disability were arthritis/rheumatism, back and ...