and hypercalcemia (elevated calcium levels in your blood). Plasma cells are white blood cells that make antibodies to fight infections. In multiple myeloma, your plasma cells are transformed into ...

Multiple myeloma activates cells that break down bone called osteoclasts. This can lead to elevated calcium in the blood, also called hypercalcemia. Elevated calcium may cause symptoms such as ...

Medically reviewed by Doru Paul, MD Multiple myeloma is a type of blood cancer that develops in plasma cells, a type of white ...