23/07/2026
**Most shoulder pain is NOT caused by calcific tendinitis—but when it does occur, it can be one of the most painful shoulder conditions.**
Calcific tendinitis occurs when **calcium hydroxyapatite crystals** form within a rotator cuff tendon, most commonly the **supraspinatus tendon**. Interestingly, many people have these deposits without any symptoms.
Pain usually develops **not because the calcium is there**, but when the body starts **breaking down (resorbing)** the deposit. This inflammatory phase can cause sudden, severe shoulder pain, making it difficult to lift the arm, get dressed, or sleep on the affected side.
**The facts:**
✔ There is no strong evidence that dietary calcium or calcium supplements cause calcific tendinitis.
✔ The calcium deposit is inside a **tendon**, not the shoulder joint.
✔ Although the symptoms may resemble a rotator cuff tear, they are different conditions and require different management.
Diagnosis is based on a detailed clinical assessment and is often confirmed with **X-rays**, while ultrasound may be used to further evaluate the deposit or guide treatment.
Most people recover with **conservative care**. Chiropractic management may help improve shoulder mobility, reduce pain, and restore normal shoulder mechanics. However, **a structured rehabilitation programme remains the cornerstone of recovery**, helping restore strength, function, and reducing the likelihood of recurrent symptoms.