In brief
I’d bought a 30-day unlimited pilates pass, and I may have overdone it. After a class, I couldn’t lift my left arm past shoulder height.
I rested it for a month. Nothing changed. A physiotherapist gave me exercises, which won back a little movement, but nobody gave the problem a name. My family doctor sent me for an X-ray. The doctor who read it reported a “soft tissue nodule.” Next came an ultrasound, which found a small fluid-filled sac, probably from the injury. The doctor who reviewed that diagnosed tendonitis. Finally I was referred to a doctor who looked at everything, set those findings aside, and told me I had frozen shoulder. He did it over Zoom, while I lifted my arms for him from the back seat of a cab in Las Vegas.
I asked how to fix it. He said it would resolve on its own in a year or two. I asked what caused it. He said it was psychological, and stress-related.
None of them mentioned menopause. My sister did. She is a doctor too, though her field is sleep and breathing, not joints. She’d been listening to Dr. Mary Claire Haver, the menopause specialist and author of The New Menopause, and she put it together before anyone treating my shoulder did.
A year after it started, I felt a big pop and most of my movement came back, about 90 percent. The exercise that led up to it was one I found on my own: a 2-pound weight in each hand, arms swinging as I walked, an hour a day. It was the only thing that felt good. The last 10 percent didn’t return until I started estrogen. My left butt, which had also seized up in a way I’d never connected to anything, loosened up too.
I’m not a doctor. I help run a women’s health company, so I went looking for what the research says about each step of that story. Nearly every step has a paper behind it.
Frozen shoulder, or adhesive capsulitis, happens when the capsule around the shoulder joint becomes inflamed, then thickens and tightens. Think of a loose sleeve slowly shrinking around the joint until the arm can’t turn inside it.
It strikes women far more often than men, and most often between 40 and 60. That is the perimenopause and menopause window, and in 2024 a team of orthopedic surgeons finally said so. They named the pattern the musculoskeletal syndrome of menopause, and put frozen shoulder on the list alongside joint pain and tendon injuries. Their review estimates that more than 70 percent of women have muscle, joint or tendon symptoms through the menopause transition, that 25 percent are disabled by them, and that in about 40 percent of cases, imaging finds nothing to explain them1.
My pilates class fits the pattern too. British shoulder surgeons’ guidance counts injury among the things that can set it off2. The class didn’t create the problem. It set it off in a joint that was already vulnerable.
Here’s what could have saved me months. The UK’s shoulder surgeons’ guideline says frozen shoulder is a clinical diagnosis, made from your history and a physical exam. The telltale sign is a disproportionate loss of passive outward rotation: someone else holds your elbow at your side and turns your forearm outward, and it won’t go. An X-ray is still standard, but only to rule out mimics like arthritis2. The whole thing takes about two minutes.
Instead, the scans turned up other things. A “nodule” on the X-ray and a small sac on the ultrasound were incidental, and each one sent the search in a new wrong direction.
A UCSF orthopedic surgeon, Dr. Stephanie Wong, told TIME this summer that frozen shoulder is easily mistaken for a rotator cuff tear or biceps tendonitis3. That’s not a rare failure. It’s a common one, and it was mine. In a public system, every scan and referral along the wrong path costs time and money that could have gone to someone else.
Ernest Codman, the surgeon who coined the term “frozen shoulder” in 1934, admitted it was hard to define, hard to treat and hard to explain. Nineteen years later, a Mayo Clinic orthopedic surgeon named Mark Coventry decided the explanation was the patient. He described a “periarthritic personality”: a type of person who, he said, couldn’t express tension freely4.
That is the idea my doctor was repeating, and it didn’t hold up. A British study of 186 patients went looking for that personality in 1976 and found no evidence of it. The authors pointed instead to wear and tear at an age when connective tissue is changing5. In 2014, a Belgian study of 118 patients, 84 of them women, compared their personality profiles with those of healthy people and found no “frozen shoulder personality” either6.
The 1976 study found something else, too: over 40 percent of patients weren’t referred to its clinic until more than six months after their symptoms began. Fifty years on, my timeline looked about the same.
The “wait it out” advice traces back to a 1975 study by a British doctor named Reeves, who described frozen shoulder as self-limiting. His own data showed only 39 percent of patients had fully recovered7.
Later studies found the same thing. An Oxford study followed 269 shoulders for an average of 4.4 years after symptoms began. By then, 41 in 100 still had mild to moderate symptoms, and 6 in 100 still had severe pain and loss of function8.
My “90 percent back, last 10 percent stuck” wasn’t bad luck. It was the typical course.
Timing matters too. A Korean study that followed patients for about three and a half years found that the longer symptoms had gone on before treatment, the worse the outcome9. Waiting is not free.
As for my pop: when frozen shoulder won’t budge, one option surgeons use is manipulation under anaesthesia. They force the arm through its range to tear the tight capsule. My pop sounds a lot like what that procedure does on purpose, but I can’t prove that’s what happened.
Estrogen acts on muscle, tendon, ligament and joint tissue, which is part of why these problems cluster around menopause. The question is whether replacing it changes anything.
The first direct look came from Duke University. Researchers reviewed the records of 1,952 women aged 45 to 60 who came in with shoulder pain or stiffness. Among women on hormone therapy, about 4 in 100 (3.95 percent) were diagnosed with frozen shoulder. Among women not on it, the figure was about 8 in 100 (7.65 percent)10.
That’s a link, not proof. Women who take hormone therapy may differ in other ways, and only 152 of the women were on it. So the next step is a proper trial, and one is now recruiting. UCSF is enrolling women over 40 with frozen shoulder, randomly assigning them to hormone therapy plus standard care or to standard care alone, and measuring results at six months11.
My own story can’t settle it. Frozen shoulder often improves with time, and maybe my last 10 percent would have come back on its own. I doubt it. Before estrogen I couldn’t hike or run. The shoulder had stalled, and my butt wasn’t improving at all. On estrogen I’m a different person. I’m not back to where I was before the injuries, but I’m climbing.
If your shoulder is stiff and painful and you’re over 40, ask directly: “Could this be frozen shoulder? Can you check my passive external rotation?” Naming the possibility early can save you months of scans.
Frozen shoulder does get better for most people, but for many it never fully recovers. Ask what you can do in the meantime, and how you’ll know if it isn’t improving.
I was offered a steroid injection if the pain got bad enough. I looked into it and decided, for me, the risks outweighed the benefit. It sounded like a bad idea for an injured shoulder. But in frozen shoulder, the target is the inflamed capsule, not torn tissue. The UK guideline found that injections plus physiotherapy improved pain and movement for up to three months, compared with physiotherapy alone2. There are downsides, including a short rise in blood sugar and a small risk of infection, so it’s a real decision. I still might make the same call. But I’d make it knowing what the injection is actually for.
Physiotherapy exercises won me back some range even before I had a diagnosis. The one that felt best, and that I did for an hour a day before the pop, was swinging a light weight in each hand as I walked. It turns out to be close to the pendulum exercise Codman prescribed for frozen shoulder in the 1930s. Gentle, regular movement within your pain limits helps you keep the range you have.
If you also have hot flashes, poor sleep, joint aches elsewhere, or changing periods, say so. Frozen shoulder on its own isn’t an approved reason for hormone therapy, but if you have other symptoms, it’s part of the picture. You can read more in Hormone therapy, explained.
Frozen shoulder mostly strikes women in midlife. It can be diagnosed in two minutes. It doesn’t always go away on its own, and it was never a personality flaw. Whether estrogen helps is finally being tested properly.
In the meantime, if your shoulder freezes in your forties or fifties, you’re allowed to ask whether menopause is part of the story. It took me two years, a sleep doctor and a podcast to ask.
This article is general information, not medical advice. The medical professional who sees you in person may reach a different assessment, and their judgement takes precedence.