Many conditions can cause pain in the sternum, including injuries, pneumonia, bronchitis, and costochondritis. Gastrointestinal problems, such as acid reflux, can cause pain behind the sternum. People ...

Your sternum is located in the middle of your chest and is also known as the breastbone. It protects the organs of your torso from injury and serves as a connection point for other bones and muscles.

The sternum, or breastbone, is the flat bone where the ribs meet. Sometimes, the joints can pop or crack as a person stretches or moves. A muscle spasm, an injury, costochondritis, and surgery are ...