SymptomsPain and persistent stiffness in the shoulder joint are the two main symptoms of a frozen shoulder. Symptoms of frozen shoulder develop gradually; usually in three stages.
There are three stages of frozen shoulder:
- Painful stage- the shoulder becomes stiff and then very painful with movement. Movement becomes limited. Pain typically worsens at night.
- Frozen/adhesive stage- the shoulder becomes increasingly stiff, severely limiting range of motion. Pain may not diminish, but it does not usually worsen.
- Thawing stage- movement in the shoulder begins to improve. Pain may fade, but occasionally recur.
CausesMost of the time there is no cause for frozen shoulder. Risk factors include:
- Cervical disc disease of the neck
- Chronic illness like diabetes or arthritis
- Women in post-menopausal age
- Shoulder injury
- Shoulder surgery
- Open heart surgery
- Thyroid problems