Frozen shoulder is likely caused by overuse, injury or a disease such as stroke or diabetes, according to WebMD. It is characterized by stiffness and limited movement in the shoulder region along with some amount of pain.
Frozen shoulder can also develop if the shoulder does not go through its full range of motion for a prolonged period, especially after surgery or an injury. Injuries that can lead to this condition include a rotator cuff injury, notes the National Health Service. People over 40 years of age are more at risk. Incidence of frozen shoulder is more common in women than in men. Diabetes, thyroid problems, tuberculosis, Parkinson's disease and other such diseases can also play a role in causing frozen shoulder.