Your bone marrow produces three types of blood cell: red blood cells, white blood cells, and platelets. Red blood cells carry oxygen through the body. White blood cells help fight infection. Platelets help with clotting. In people with leukemia, the bone marrow produces abnormal white blood cells. These abnormal cells may work normally at first, but can crowd out normal, healthy blood cells and make it difficult for blood to do its work. Leukemia can be divided into two groups, depending on how quickly the disease develops and progresses: Chronic leukemia gets worse slowly. Abnormal blood cells can still do … Continue reading →