| What We Treat
Calcific Tendinopathy
Sudden, severe shoulder pain that seems out of proportion to anything you’ve done? Calcific tendinopathy can be one of the most painful shoulder conditions there is — and one of the most reassuring, because it reliably resolves.
Overview
What Is Calcific Tendinopathy?
Calcific tendinopathy is the formation of calcium deposits within a rotator cuff tendon, most often the supraspinatus. It follows a recognised cycle: the deposit forms quietly, sits dormant for a period, and then breaks down — and it’s during that resorptive breakdown phase that the pain becomes intense. The critical point is that this is a self-limiting process. The body clears the deposit, and the tendon typically returns to normal.
The shaded wedge indicates the typical level of pain in each phase. The resorptive phase is the most painful — and the one immediately before recovery.
1. Formative
Calcium is laid down in the tendon, often with little or no pain. Many deposits are found incidentally on scans done for other reasons.
2. Resting
The deposit sits stable and chalky. Symptoms are typically mild — some catching or discomfort with overhead work, or nothing at all.
3. Resorptive
The body begins actively breaking the deposit down. This produces intense, often sudden pain, and is when most people present. It usually lasts days to a few weeks.
4. Healing
The deposit clears and the tendon remodels. Pain settles substantially and movement returns, though the shoulder can feel stiff for a while afterwards.
Symptoms
How It Tends to Feel
The presentation depends entirely on which phase you’re in, which is why it can be so confusing:
Sudden Severe Pain
During the resorptive phase, pain can come on rapidly and be severe enough to be mistaken for something far more sinister.
Pain Out of Proportion
Often no injury, no obvious trigger, and a level of pain that seems to make no sense — a characteristic feature.
Unable to Find Comfort
People frequently describe pacing, being unable to sit still, and getting very little sleep during the acute phase.
Guarded Movement
The shoulder is often held protectively against the body, with movement limited more by pain than by genuine stiffness.
Milder Chronic Grumbling
In the resting phase, symptoms may be no more than a catch with overhead reaching, or nothing at all.
Predictable Resolution
Even severe episodes almost always settle substantially over days to weeks as the deposit resorbs.
Causes & Risk Factors
What Drives It
Calcific tendinopathy isn’t simply wear and tear — it appears to be an active, cell-mediated process, which is why it resolves rather than progresses.
An Active Biological Process
Current understanding is that tendon cells transform and deposit calcium, then the body mounts a clean-up response. It is not a passive accumulation of debris.
Age and Sex
Most common between 30 and 60, and somewhat more frequent in women.
Metabolic Factors
Thyroid disorders and diabetes are both associated with a higher prevalence and with slower resolution.
Not Primarily Overload
Unlike most tendinopathies, it isn’t strongly linked to training load — which is why it often appears in people who’ve done nothing unusual.
Sedentary Occupation
There is a modest association with lower physical activity levels, though the relationship is not well understood.
How We Can Help You
Treatment & Management
The aim is to get you through the acute phase as comfortably as possible, then restore the movement and strength the episode has cost you. Knowing that it resolves changes how the whole thing feels.
What the evidence says
Systematic reviews of ultrasound-guided barbotage report good outcomes for pain and function in cases that don’t settle, and it is now the most common interventional option. Extracorporeal shockwave therapy also has reasonable supporting evidence for calcific deposits specifically — notably better than its evidence base in most other tendinopathies.
That said, the natural history is favourable: a substantial proportion of deposits resorb on their own. Intervention is about shortening a difficult episode, not about preventing a bad outcome.
When to Seek Help
Red Flags — Don’t Ignore These
Severe, sudden shoulder pain occasionally has other causes that need excluding:
⚠ Seek prompt medical assessment if you notice:
- Fever, feeling generally unwell, or a hot and red shoulder alongside the pain (possible joint infection — seek emergency care)
- Chest pain, breathlessness, or pain radiating to the jaw (possible cardiac cause — call 999)
- Sudden inability to lift the arm following a fall or wrench (possible large tear or fracture)
- Pain that continues to escalate over more than a few weeks rather than beginning to settle
- Unexplained weight loss, night sweats, or a history of cancer alongside new shoulder pain
These symptoms can point to a cause that needs medical rather than physiotherapy assessment. Please don’t wait for a physiotherapy appointment — contact your GP, call 111, or attend A&E as appropriate.
Common Questions
Frequently Asked Questions
Will the calcium deposit go away on its own?
In most cases yes. The resorptive phase — the painful one — is the body actively clearing the deposit, which is why it hurts so much and why it’s followed by improvement. Some deposits persist in the resting phase for a long time without causing significant problems.
Why is it so much more painful than other shoulder problems?
Because the resorptive phase is an active inflammatory clean-up process happening inside a confined space under a rigid bony roof. The pressure and chemical irritation together produce pain that is genuinely disproportionate to any mechanical damage.
Should I have it needled?
Barbotage is a reasonable option if the pain is severe or isn’t settling on the expected timeline. It’s not usually the first step, because many deposits resolve without it. If you’re having a particularly difficult time, it’s worth discussing sooner rather than later.
Can I exercise through it?
During the acute resorptive phase, most people can’t do much — and that’s reasonable. Gentle movement to prevent stiffness is worthwhile; heavy loading isn’t. Once the acute phase passes, progressive strengthening becomes the priority to recover what the episode has cost you.
Get Through It Faster, With Less Guesswork
A clear diagnosis, a plan for the acute phase, and a structured route back to full movement once the worst has passed.
Book Your Initial AssessmentThis page is for general information only and isn’t a substitute for individual medical advice. If you’re experiencing any of the warning signs above, contact your GP or seek emergency medical care as appropriate.