Up to 20% of those with<unk>  have no symptoms. For those with symptoms, the symptoms vary based on the phase of the disease. In the initial "formative phase" when the calcium deposits are being formed, people rarely experience any symptoms. Those that do have symptoms tend to have intermittent shoulder pain, particularly during forward should flexion (i.e. lifting the arm in front of the body). In the "resorptive phase" when the calcium deposit is breaking down, many experience severe acute pain that worsens at night. Those affected tend to hold the shoulder rotated inwards to alleviate pain, and have difficulty lying on the affected shoulder. Some people experience heat and redness at the affected shoulder, as well as a limited range of motion.
Calcific tendinitis
Retrocalcaneal bursitis
Ischial bursitis
Pes anserine bursitis
Infrapatellar bursitis
Facet joint arthrosis
Subacromial bursitis
Olecranon bursitis