03/24/2026
Most people look at this and focus on the timelines. 9 months, 12 months, 2 years. Nice and tidy. Real patients don’t follow that.
What matters more is what you actually see.
Adhesive capsulitis isn’t just a “stiff shoulder.” It’s a shoulder where movement is limited whether the patient tries… or you try. Active range is reduced, and passive range is reduced as well. That’s one of the key clinical signs.
If they can’t lift it, but you can move it further, you’re thinking along a different line. If both are restricted — especially external rotation — adhesive capsulitis moves higher up your list.
Now, risk factors.
This doesn’t just show up randomly. There are patterns. Diabetes is a big one. Thyroid disorders also come up regularly. Previous shoulder injury or a period of reduced use can trigger it. And then there’s age — most commonly between 40–60.
You’ll also see it more in females, and menopause likely plays a role here. Hormonal changes, particularly the drop in oestrogen, are thought to influence connective tissue behaviour and inflammatory responses. That can make the capsule more susceptible to thickening and stiffness. It’s not the only reason, but it’s part of the picture.
The inflammation point in this graphic is only part of the story. Early on, yes, there may be an inflammatory component. As it progresses, you’re dealing more with capsular thickening and reduced joint capacity. So it’s not just something that needs “calming down.”
And the stages? Freezing, frozen, thawing. Useful as a rough guide, but don’t treat it like a schedule. Patients don’t move through this in a straight line.
Management isn’t about forcing range back. It’s about working within tolerance, keeping the shoulder moving, and reducing sensitivity so the patient can actually use it again. Sometimes injections help, sometimes they don’t. There’s no one-size approach.
Bottom line:
If it doesn’t move when they try… and it doesn’t move when you try… pay attention.