Acute Lymphoblastic Leukemia (ALL) is a type of cancer that affects the white blood cells called lymphocytes. It is characterized by the abnormal production and proliferation of immature lymphoblasts in the bone marrow, which eventually replace normal blood cells.
ALL is the most common type of cancer in children, but it can also occur in adults. The exact cause of ALL is unknown, but it is believed to involve a combination of genetic and environmental factors.
