A frequent source of lower-back pain comes from two muscles you might not have heard of—and that makes sense since you rarely see them on those medical posters of human anatomy in doctor's offices.

Lower spine pain can develop due to sprains and strains of muscles or changes to the discs in the lower back. Conditions that affect the facet joints of the vertebrae may also cause lower spine pain.

Low back and hip pain typically affect one side of the body. However, it is possible to have pain on both sides depending on the underlying cause or if you experience pain that radiates or is ...

Lower back pain is one of the most ubiquitous health complaints in the world. In fact, the World Health Organization says that low back pain is the single leading cause of disability worldwide—but ...