Introduction:Multiple myeloma (MM) is a geriatric disease with onset at an average age of approximately 61 years.With the aging of the population,the incidence rate of MM is climbing.In the United States,the annual incidence rate of MM is 2-5/100,000.Multiple myeloma accounts for approximately 1% of all tumor eases and slightly >10% of cases with hematologic malignancy.Although an increased Introduction: Multiple myeloma (MM) is a geriatric disease with onset at an average age of approximately 61 years .With the aging of the population, the incidence rate of MM is climbing.In the United States, the annual incidence rate of MM is 2 -5 / 100,000.Multiple myeloma accounts for approximately 1% of all tumor eases and slightly> 10% of cases with hematologic malignancy .Although an increased