Causes

• The Mayo Clinic reports that overuse is the most common cause for the condition, though injury may also contribute. The National Institute of Health (NIH) notes that aging, diabetes and rheumatoid arthritis can also cause calcific tendonitis.
  
  

Symptoms

• The main symptom of the condition is pain, typically at or near a joint, that is made worse through activity involving the joint. Swelling may also manifest in the affected area.
  
  

Areas Affected

• The Mayo Clinic reports that tendinitis is most common in the wrists, elbows, shoulders and heels. However, tendinitis may occur in any tendon.
  
  

Diagnosis

• Diagnosis is performed through a physical examination of the tendon while it is under stress. Pain or tenderness while under stress are clinical features.
  
  

Treatment

• The NIH offers that resting or immobilizing the tendon, anti-inflammatory medications, and physical therapy are the principle treatments. Less frequently, surgical interventions may be used.