Frozen Shoulder: Why Your Shoulder Stiffened Up and How It Heals
Shoulder gone stiff and painful, hard to reach behind your back or overhead? Frozen shoulder is common, especially after 40 and with diabetes. Here is what to expect.
It often creeps up without any obvious injury: one day you reach for a seatbelt or try to fasten something behind your back, and a sharp pain stops you cold. Over weeks, the shoulder gets stiffer and stiffer until it feels genuinely "frozen." Frozen shoulder is a real, well-understood condition — frustrating and slow, but one that almost always gets better. Here is what is happening in that stubborn joint, and how to help it recover.
What Frozen Shoulder Is
Frozen shoulder (the medical term is adhesive capsulitis) is when the flexible capsule around the shoulder joint becomes inflamed, thickened, and tight. That tightness is what limits movement and causes pain. It typically comes on gradually, often without a clear cause, and it has a very characteristic pattern of getting worse before it slowly gets better.
The Three Stages
| Stage | What happens | Rough timeline |
|---|---|---|
| Freezing | Pain builds, movement gradually reduces | Weeks to months |
| Frozen | Pain may ease, but stiffness is at its worst | Several months |
| Thawing | Movement slowly, steadily returns | Months to over a year |
Who Tends to Get It
- Adults roughly 40 to 60, and more often women
- People with diabetes (notably more common and can be more stubborn)
- Thyroid problems and some other conditions
- After a period of not moving the shoulder — from an injury, surgery, or a sling
What Helps It Along
- Gentle, regular movement and stretching within comfort — the single most important thing; a stiff shoulder that stops moving gets stiffer
- Physiotherapy guided by a professional to safely restore range
- Warmth before stretching, to loosen the joint
- Pain relief as advised by a doctor, so you can actually do the exercises
- Keeping any diabetes well controlled, which supports recovery
When to See a Doctor
See a doctor or orthopedic specialist if your shoulder is stiff and painful for more than a few weeks, if it is steadily limiting everyday tasks like dressing or reaching, or if it follows an injury. They can confirm it is a frozen shoulder (rather than something else), rule out other causes, and set you up with the right exercises and pain plan. Much of this — assessing your movement, guiding physiotherapy, reviewing progress — works well through an online consultation, with an in-person visit only if a scan or procedure is needed. With the right approach, the vast majority of frozen shoulders recover fully.