About 30,280 people will be diagnosed with multiple myeloma this year. What is this lesser-known illness?About 30,280 people will be diagnosed with multiple myeloma this year. What is this lesser-known illness? Multiple myeloma is a cancer formed by malignant plasma cells in the bone marrow. Plasma cells help fight infections by making antibodies that recognize and attack germs. Rather than produce helpful antibodies, the cancer cells produce abnormal proteins that can harm other tissues and organs, such as the kidneys. Dr. Adjai Chari shares the symptoms of this cancer you should know and look out for, along with the latest research on treatments and their effectiveness. Bonus! THIS Can Raise Your Risk of Colon Cancer by 50%