One of the most frustrating things about frozen shoulder is that it doesn't behave like a normal injury. You didn't fall on it, you didn't lift something wrong — and yet, over weeks, reaching for a shelf or fastening a seatbelt becomes genuinely difficult. Understanding the three phases it moves through changes how you approach treatment, and how much patience it needs.
What frozen shoulder actually is
The capsule surrounding the shoulder joint thickens and tightens, restricting movement in every direction — not just one. It tends to develop gradually, often without an obvious trigger, and can last many months from start to finish. That timeline is normal, even though it doesn't feel like it when you're in the middle of it.
The three phases
| Phase | What's happening | What treatment focuses on |
|---|---|---|
| 1. Freezing | Pain increases, especially at night; movement starts to reduce | Pain relief and inflammation control — gentle, not aggressive, treatment |
| 2. Frozen | Pain often eases, but stiffness is at its worst; movement is significantly limited | Gradual restoration of shoulder mobility, worked carefully within tolerance |
| 3. Thawing | Movement slowly returns | Strengthening and functional rehabilitation, to make sure the shoulder doesn't just move again but works properly |
Why the phase matters more than the diagnosis
"Frozen shoulder" as a label doesn't tell a physiotherapist much on its own — what matters is which phase you're in. Pushing hard into stretching during the freezing phase, when the joint is inflamed and painful, tends to backfire and increase pain. The same aggressive approach is often exactly right later, in the thawing phase, once the joint can tolerate it. This is why a programme should be tailored to where you are, not applied as a fixed protocol from day one.
What you can do between sessions
- Keep using the arm for daily tasks within a pain-tolerable range — avoiding it completely tends to prolong stiffness
- Do the specific home exercises given, rather than generic shoulder stretches found online, since the wrong exercise at the wrong phase can aggravate things
- Expect slow, non-linear progress — a good week followed by a plateau is normal, not a sign the treatment isn't working
When technology helps
Manual therapy and structured exercise remain the core of treatment throughout. Additional tools — high-power laser therapy for pain and inflammation, or a shoulder rehabilitation wheel for progressive mobility work — are used to support that core work at the right phase, not to replace it.
Orthopedic Rehabilitation at Impulse Physiotherapy treats frozen shoulder alongside the full range of joint, muscle and spine conditions, with on-site X-ray and direct coordination with your orthopaedic surgeon where needed.