Use causal in a sentence. of a cause or causes. being or involving a cause. relating to cause and effect.
Causes of frozen shoulder. Frozen shoulder occurs when the sleeve that surrounds the shoulder joint, known as the capsule, becomes swollen and thickened. It's unclear why this happens. The shoulder is a ball and socket joint. The end of your upper arm bone (humerus) sits in contact with the socket of your shoulder blade (scapula).
Shoulder pain can be caused by a minor injury, bad posture or an underlying health condition. Conditions that can cause shoulder pain include: 1  frozen shoulder. 2  rotator cuff disorders. 3  shoulder instability. 4  acromioclavicular joint disorders. 5  a broken arm or broken collarbone.