Ankylosing spondylitis (AS), also called axial spondyloarthritis, can cause stiffness in the neck and shoulders. Neck and shoulder pain might get worse after lying or sitting for a time, causing ...

The causes of shoulder pain may be as common as a traumatic injury or as rare as a systemic inflammatory condition, according to the American Academy of Orthopaedic Surgeons. The combination of joints ...

Shoulder blade pain can be caused by muscle strain, rotator cuff tears, or joint conditions like osteoarthritis. Symptoms of shoulder blade pain include dull, sharp, or burning pain, weakness, and a ...