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By Mayo Clinic staffAlthough the exact cause is unknown, certain factors may increase your risk of developing frozen shoulder.
Age and sex
People 40 and older are more likely to experience frozen shoulder. About 70 percent of the people who develop the condition are women.
Immobility
People who have experienced prolonged immobility of their shoulder are at higher risk of developing frozen shoulder. Immobility may be the result of many factors, including:
- Rotator cuff injury
- Broken arm
- Stroke
- Recovery from surgery
Systemic diseases
People who have certain medical problems appear to be predisposed to develop frozen shoulder. Examples include:
- Diabetes
- Overactive thyroid (hyperthyroidism)
- Underactive thyroid (hypothyroidism)
- Cardiovascular disease
- Tuberculosis
- Parkinson's disease
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