Muscle injuries, nerve pain, and kidney inflammation can all cause lower left back pain. Learn about these causes and more. Medically reviewed by Anju Goel, MD Lower left back pain can be inconvenient ...

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it. Lower back pain is often blamed ...

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.

You may be familiar with that feeling — you stand too quickly or turn too suddenly and feel that slight “tug” in your back. But while a muscle pull may put you out of action for a few days, back pain ...

Lower-back pain affects nearly everyone at some point, but having it on one side may unnerve you. It could be from sitting hunched over at a desk for long periods or from sleeping weirdly, but ...

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 ...

Running is not typically related to higher-than-usual incidences of lower back pain. However, excessive running without sufficient recovery time, improper running form, and other factors may ...

Like other parts of your body, your muscles change over the years. “As you age, your muscle fibers become less dense, which makes them less flexible and more prone to injury,” says Elizabeth Gardner, ...