When plasma cells in the bone marrow exceed 5%, it's a key diagnostic marker for myeloma. Healthy individuals typically have less than 5% plasma cells in their bone marrow — so anything above that threshold raises concern.
Here's what higher plasma cell percentages can mean:
- Diagnosis threshold: A bone marrow plasma Show Full Answer
When plasma cells in the bone marrow exceed 5%, it's a key diagnostic marker for myeloma. Healthy individuals typically have less than 5% plasma cells in their bone marrow — so anything above that threshold raises concern.
Here's what higher plasma cell percentages can mean:
- Diagnosis threshold: A bone marrow plasma cell level of 10% or more is one of the criteria used to diagnose active multiple myeloma
- Disease progression: Higher numbers of abnormal plasma cells in the bone marrow are generally associated with a more aggressive disease course
- Crowding out healthy cells: As myeloma plasma cells increase, they push out normal blood-producing cells, which can lead to anemia, increased infection risk, and low platelet counts
- Treatment decisions: The percentage of plasma cells helps doctors determine the stage of myeloma and guide treatment planning It's really important to discuss your specific bone marrow biopsy results with your oncologist or myeloma specialist. They can put the numbers in context with your other test results — like beta-2 microglobulin levels and M protein levels — to give you the clearest picture of where things stand and what next steps make sense.
July 25
Join
Your Privacy Choices
