M protein is an abnormal protein caused by plasma cells. See why Myeloma protein might show up in your blood and what kinds of conditions it might be a sign of.

What you need to know about this essential macronutrient and how it works. Reviewed by Dietitian Kelli McGrane, M.S., RD Proteins are made up of amino acids and are found in every cell of the body ...

Urine immunofixation is a test that measures proteins in your urine. It specifically looks for monoclonal protein, or M-protein, which shouldn’t be there in most cases.‌. Doctors will be able ...