In most cases, frozen shoulder affects only one shoulder at a time. The affected shoulder typically experiences:
- Pain, especially at night
- Stiffness and reduced range of motion
- Difficulty performing daily activities, such as dressing, driving, or lifting objects
However, both shoulders can be affected, although it is much less common. Studies suggest that around 10–15% of patients may develop frozen shoulder in the opposite shoulder, usually months or years later.
Risk Factors for Bilateral Frozen Shoulder
Certain factors increase the likelihood of developing frozen shoulder in both shoulders:
- Diabetes or thyroid disorders – Patients with these conditions are at higher risk
- Previous shoulder injury or surgery – Immobilisation or trauma can trigger adhesive capsulitis
- Age 40–60 years – Frozen shoulder is most common in this age group
- Prolonged inactivity – Lack of movement due to injury, surgery, or illness
At Alton Pain Clinic, clinicians consider these risk factors when creating a personalised treatment plan for frozen shoulder in Alton.
Stages of Frozen Shoulder
Frozen shoulder progresses in three stages, whether it affects one or both shoulders:
Freezing Stage
- Pain gradually increases
- Shoulder starts to stiffen
- Lasts 6–9 months on average
Frozen Stage
- Pain may decrease
- Stiffness becomes the main issue
- Daily activities are restricted
Thawing Stage
- Gradual improvement in shoulder movement
- Can take 6–24 months for full recovery
Treatments for Frozen Shoulder
At Alton Pain Clinic, we provide non-surgical frozen shoulder treatment with a focus on pain relief, improving range of motion, and long-term recovery. Treatments include:
Ultrasound-Guided Cortisone (Steroid) Injection
- Reduces pain and inflammation in the shoulder joint
- Improves comfort for daily activities
- Most effective in the early freezing stage
Ultrasound-Guided Hydrodilatation
- Injects fluid into the joint to stretch the tight capsule
- Improves stiffness and range of motion
- Often recommended for the frozen stage when stiffness dominates
Can Both Shoulders Be Treated Simultaneously?
If frozen shoulder occurs in both shoulders, treatment is usually staggered to allow one shoulder to recover while the other is managed. Clinicians at Alton Pain Clinic assess the severity in each shoulder and design a customised treatment plan.
Key Takeaway
- Frozen shoulder usually affects one shoulder, but both shoulders can be involved in a minority of cases
- Risk factors include diabetes, thyroid disorders, previous injury, and age 40–60
- Treatment includes ultrasound-guided steroid injections & hydrodilatation
- Early assessment and intervention improve pain relief, movement, and quality of life
At Alton Pain Clinic, we provide expert care for frozen shoulder in Alton and surrounding Hampshire areas, helping patients regain shoulder function and comfort.
Frequently Asked Questions
Can frozen shoulder affect both shoulders?
Yes, but it is uncommon. Most patients experience frozen shoulder in one shoulder at a time. Around 10–15% may develop it in the opposite shoulder later.
What causes frozen shoulder in both shoulders?
Risk factors include diabetes, thyroid disorders, previous shoulder injury or surgery, and age 40–60.
How long does recovery take?
Recovery can take 6–24 months depending on the stage of frozen shoulder, with improvement accelerated by injections.