In multiple myeloma, abnormal plasma cells build up inside bone marrow -- the spongy tissue inside large bones where blood cells are produced. Over time, myeloma cells cause damage to bones, kidneys, ...

Bone marrow fills the cavities in your bones and produces blood cells. Red blood cells carry oxygen, white blood cells fight germs, and platelets help blood clot. Bone marrow disorders include ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...