What is acute lymphocytic leukemia (ALL)?
ALL is cancer that affects the blood and bone marrow. The bone marrow makes white blood cells (WBC), red blood cells (RBC), and platelets. WBCs help fight infection. RBCs help carry oxygen throughout the body. Platelets help the blood clot. ALL causes your body to make too many immature (young) white blood cells (WBC). These cells are cancer (leukemia) cells, and cannot fight infection like healthy WBCs. Cancer cells crowd the bone marrow and prevent it from making healthy blood cells. Without enough healthy blood cells, you are at risk for infection, bleeding, and anemia. Anemia is a low level of red blood cells.
