Well, yes, low WBC can be serious, however, if you are recovering from an illness it can be expected. If there is increased infection and the body cannot fight it, the WBC start going down as the pathogen start engulfing them. However, if there is no fever, it is not due to infection. Chemotherapy, and radiation therapy are the other causes. Other common causes of low WBC are flu, lupus, Hodgkin's lymphoma, some types of cancer, typhoid, malaria, tuberculosis, dengue, enlarged spleen or hyper-spleenism, and folate deficiency. Please discuss with his treating doctor to run tests to find the cause. If all these are ruled out, then it can be bone-marrow suppression.
Since I cannot examine you and know other related conditions you may be having, nor is a detailed history possible on net, I have listed the various possibilities that should be looked into. Please consult your PCP to run tests and examination to clinch a diagnosis. Take care!
Thank you for your answer, I am worried now. I had a mild heart attach about 2 months ago, could that be anything to do with it?
I had a stent put in a blocked artery.
I have had another blood test today and am seeing my doctor next week, so we'll see what is going on. I am on a lot of new (for me) medications, could that be it?
I feel OK , have been exercising more. My diet is fine and am not obese.
I am 66 years old.
I'l wait and see what my doctor recommends next Thursday.
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