Frozen Shoulder
What is Frozen Shoulder?
Frozen shoulder—known medically as adhesive capsulitis—causes significant pain and loss of motion, making simple daily activities difficult. In the U.S., frozen shoulder affects about 2% of adults, and occurs most frequently in people between ages 40 and 60.
Understanding Frozen Shoulder
The condition develops when the connective tissue (capsule) surrounding your shoulder joint thickens and tightens, restricting movement. This can happen after an injury, surgery, or for no clear reason.
Progression Stages
- Freezing Stage: Increasing pain and decreasing motion, lasting 2–9 months.
- Frozen Stage: Pain may improve, but stiffness and limited movement remain (4–12 months).
- Thawing Stage: Gradual improvement in motion over 5–24 months. Full recovery can sometimes take years.
Who is at Risk?
- Adults 40–60 years old, both women and men.
- More likely after shoulder immobility: arm fracture, stroke, rotator cuff injury, or post-surgery.
- Increased risk if you have diabetes (affecting 10–20% with diabetes), thyroid disorders, or heart disease.
Common Symptoms
- Chronic pain, often worse at night and lying on the affected side.
- Noticeable shoulder stiffness—not being able to raise your arm, reach overhead, or rotate your arm.
- Substantial impact on daily activities: grooming, dressing, driving, sleeping.