What Causes Leukemia

Leukemia – What is Leukemia

   What Is Leukemia? What Causes Leukemia Leukemia is cancer of the body’s blood-forming tissues, including the bone marrow and the lymphatic system. Many types of leukemia exist. Some forms of leukemia are most common in children. Other forms of leukemia occur mostly in adults. Leukemia usually starts in the white blood cells. Your white