Acute lymphocytic leukemia (ALL) is also known as acute lymphoblastic leukemia. It’s a type of cancer that causes the body to make too many white blood cells called lymphocytes, which unlike regular white blood cells, cannot fight infection very well. When these cells build up in the blood and bone marrow, there is less room for healthy blood cells. This can cause infections, anemia, easy bleeding and other complications. Bradley Goldberg, MD, attending physician of benign and malignant hematolo

Acute lymphoblastic leukaemia (ALL) | NHS