Upper back pain between the shoulder blades may result from poor posture or muscle strain. However, it can also stem from more serious problems with the spine, such as scoliosis or osteoarthritis.

Upper back pain—or, discomfort that can occur anywhere from the base of your neck to the bottom of your rib cage—can disrupt everything from your ability to perform daily activities to getting ...

On the left side of the body, these organs include the: Costochondritis ... can cause pain in the left upper abdomen. This may occur alongside pain at the left back and side.

MSSA costochondritis must be distinguished from more-common causes of chest pain. Tietze syndrome has been characterized as a tender, nonsuppurative swelling in the upper costosternal region.

Is it RA or am I having heart problems? Answer: Pain felt in the bones of your chest is likely due to costochondritis or inflammation of the cartilage where the ribs attach to the breast bone.