This is a cancer of the bone in which cancer cells accumulate in bone marrow. The cause of Multiple Myeloma is not clear but is associated with age and gender. It often occurs in the elderly age>60 and in men.
The symptoms include calcium high in the blood, renal failure, anemia and bone pain/fracture, so called the CRAB of multiple myeloma. The bone pain usually occurs in the spine and ribs that cause back pain and chest or upper abdominal pain. The systemic symptom associated with it are weight loss, frequent infections, and leg/muscle weakness
Treatments: When you notice above symptoms, please go to see your doctor for diagnosis and treatments.