The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

Back injections can provide significant pain relief for some people. Doctors target specific locations in your spine and muscle to provide the most effective pain relief. If you have back pain that’s ...

A range of health conditions may cause middle back pain on the left side including a sprain, kidney stones, osteoporosis, or pancreatitis. The National Institutes of Health (NIH) is the source of the ...

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 ...