What freezes in frozen shoulder?

Shoulder capsule. In frozen shoulder (or adhesive capsulitis), the actual shoulder joint is tight. Since we do not know the actual causes or adhesive capsulitis, we have difficulty studying it. We do see a period of inflammation that causes thickening of the shoulder lining (capsule). There can also be adhesions that stick from the capsule to the surrounding shoulder. This all loosens and thins over 8-16 months.
Frozen shoulder. The capsule or lining tissues of the glenohumeral joint.
The capsule. Frozen shoulder is also termed adhesive capsulitis. The capsule is the covering of the joint and primarily formed by ligaments. Adhesions (similar to scar tissue) often form within and just outside the capsule and cause shoulder pain and stiffness. Most cases have an unknown cause (idiopathic), but frozen shoulder is more common in diabetics, those with thyroid disease and after shoulder surgery.
Adhesive Capsulitis. Frozen shoulder implies that the joint lining or capsule has become inflamed, thickened, and contracted. Stretching the capsule in any direction causes pain.
Capsule. A frozen shoulder occurs when the lining of the joint, called capsule, becomes inflammed and thickened. As the capsule shortens, the shoulder gradually loses range of motion.

Related Questions

Frozen shoulder again. What is the likelihood that a bicep tendon tear can cause the shoulder to start to freeze?

Anything. That causes pain discomfort or altered movement the the shoulder can lead to s frozen shoulder. Early motion of the shoulder in a manner that eliminates gravity and pain such as pendulum exercises and gentle motion while lying down will help to keep the shoulder mobile. Talk to your treating doctor and therapist about what is appropriate for your injury.