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This is Dr. David
there are many different types of white blood cells: neutrophils, macrophages, monocytes, lymphocytes, basophils, eosinophils, etc.
your bone marrows makes each as needed to help your immune system keep you healthy.
usually lymphocytes above or below the "normal" range is not a worrisome sign and doesn't point to disease process.
let me know if you have questions.