Multiple myeloma is the second most common type of blood cancer after leukemia. Learn more about the symptoms, causes, diagnosis, risk factors, and treatment of multiple myeloma.

Multiple myeloma is a type of blood cancer that affects plasma cells, a kind of white blood cell found in the bone marrow.

Your risk for multiple myeloma (MM) increases as you age. In fact, 35% of the patients are diagnosed at age 75 or older, including 10% who are 85 or older. The average age for this type of blood ...