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Published on: 7/15/2026
Multiple myeloma is a type of blood cancer that develops in plasma cells, a type of white blood cell found in the bone marrow. These cancerous plasma cells multiply abnormally, crowding out healthy blood cells and producing faulty antibodies that can damage bones, kidneys, and the immune system.
If you're experiencing symptoms like persistent bone pain, unexplained fatigue, frequent infections, or unusual bruising, it's important not to guess or delay. Understanding your symptoms early can make a meaningful difference in outcomes. Take a free, instant, online symptom check to gain clarity on what your body may be telling you and to help guide your next steps with confidence.
Reviewed for medical accuracy: 07/14/2026
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Submit your own QuestionMultiple myeloma is a cancer that starts in the bone marrow, where blood cells are made. It specifically affects a type of white blood cell called plasma cells. These cells are part of the immune system and help fight infections by making antibodies. In multiple myeloma, these plasma cells grow out of control and form tumors in the bone marrow.
By understanding that multiple myeloma is a cancer of the plasma cells, we can appreciate why it's important to monitor and treat this condition carefully.
(References)
Bianchi G, & Anderson KC. (2014). Multiple myeloma from bench to bedside, and back. CA: a cancer journal for clinicians, 25266555.
Sun J, Park C, Guenthner N, Gurley S, Zhang L, Lubben B, et al. (2022). Tumor-associated macrophages in multiple myeloma. Journal for immunotherapy of cancer, 35428704.
Hemminki K, Försti A, Houlston R, & Sud A. (2021). Epidemiology, genetics and treatment of multiple myeloma .... International journal of cancer, 34398972.
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