Calcium deposits and tendonitis

Calcific tendonitis involves calcium crystals forming inside tendon tissue, most often discussed in the shoulder's rotator cuff. A deposit may be quiet or may irritate the tendon and nearby bursa. When active, the condition can present with sharp pain, stiffness, disrupted sleep, and difficulty lifting or reaching with the affected limb.

The calcium seen in a tendon is different from the calcium circulating in blood or used to support bones. Routine dietary intake is not considered a direct explanation for a local deposit. Blood tests are not required for every case, although a clinician may order them when the medical history, multiple deposits, kidney problems, or other features raise a separate concern about calcium balance.

Do not cut calcium from your diet or stop a prescribed supplement solely because a tendon deposit appears on imaging. Discuss the reason for the supplement with the prescribing clinician. For the painful area, scale back provocative loads while maintaining easy movement, and use a cold pack wrapped in cloth if that provides relief.

An assessment should connect the scan finding with your symptoms and function. Physiotherapy can guide mobility and progressive strengthening. When pain remains limiting, options may include shockwave therapy, image-guided needling and lavage, or an injection aimed at nearby inflammation rather than dissolving the calcium. The suitable approach depends on the deposit's location, symptom pattern, and your wider health.

Schedule a clinical review if pain is worsening, limits work or self-care, frequently interrupts sleep, or fails to settle with activity adjustment. Get urgent help for a hot, red, swollen joint accompanied by fever; severe pain after injury; a new deformity; sudden limb weakness or numbness; or changes in colour, warmth, or circulation beyond the painful area.

Ask whether the deposit matches the painful tendon, whether another structure could explain the symptoms, and whether further imaging is likely to change care. If you are concerned about diet or supplements, clarify why you take them and whether any blood testing is relevant to your medical history.