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Published on: 7/15/2026
Low iron on a blood test typically indicates iron deficiency anemia, a condition where the body lacks enough iron to produce healthy red blood cells. This is a common finding in people with multiple myeloma, a type of blood cancer that disrupts normal blood cell production in the bone marrow. Symptoms may include fatigue, weakness, pale skin, and shortness of breath.
Because low iron can stem from many causes—ranging from dietary gaps to serious underlying conditions like multiple myeloma—it's important to understand what's driving your symptoms. Taking a free, instant, online symptom check can help you identify possible causes and guide your next steps, whether that means a conversation with your doctor or further testing.
Reviewed for medical accuracy: 07/14/2026
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Submit your own QuestionIron deficiency anemia is a condition where there is not enough iron in the body to make healthy red blood cells. This can be seen on a blood test as low iron levels. People with multiple myeloma, a type of cancer that affects plasma cells in the bone marrow, can sometimes have low iron levels.
Understanding these basics can help in managing health, especially for those with conditions like multiple myeloma that can affect iron levels.
(References)
Jäger L, Rachamin Y, Senn O, Burgstaller JM, Rosemann T, & Markun S. (2024). Ferritin Cutoffs and Diagnosis of Iron Deficiency in Primary .... JAMA network open, 39102268.
Auerbach M, & Adamson JW. (2016). How we diagnose and treat iron deficiency anemia. American journal of hematology, 26408108.
Gafter-Gvili A, Schechter A, & Rozen-Zvi B. (2019). Iron Deficiency Anemia in Chronic Kidney Disease. Acta haematologica, 30970355.
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