Where does multiple myeloma metastasize to?

Multiple myeloma primarily originates in the bone marrow, but it can lead to the formation of bone lesions that may cause pain and fractures. It can also metastasize to various organs, including the kidneys, liver, and lymph nodes. In advanced stages, it may affect the soft tissues and other organs, but the most significant impact is typically seen within the skeletal system. Overall, its spread is often associated with the production of abnormal plasma cells and the disruption of normal bone metabolism.