Leukemia is cancer of the blood that develops from an overproduction of immature white blood cells. As the white cells accumulate, they interfere with vital organ functions, including the production of healthy blood cells, making people with leukemia anemic and susceptible to bruising, bleeding, and infection. Leukemia is classified as acute or chronic. Leukemias are further classified according to the type of white blood cell involved. No one knows exactly what causes leukemia, but chromosome abnormalities, exposure to pollution, prolonged exposure to radiation, and tobacco smoking may be factors. Treatment typically includes chemotherapy and bone marrow transplantation. Follow the links below to find WebMD's comprehensive coverage of how leukemia develops, the symptoms of leukemia, its diagnosis, treatment, and much more.
What Is Leukemia and What Causes It?
WebMD explains leukemia -- how it happens and why.
Acute Lymphoblastic Leukemia: Survival, Treatments, and More
WebMD explains acute lymphoblastic leukemia (ALL), including its symptoms, risk factors, and treatments.
What Is Acute Myeloid Leukemia? What Causes It?
WebMD explains acute myeloid leukemia (AML), a type of blood cancer, including causes and risks factors.
Symptoms of Leukemia
Information on the symptoms of leukemia.
Rap Star Nelly: Fitness, Fatherhood, and a Health Foundation
How the chart-topping musician stays healthy while balancing a multi-faceted career, his family, and his work advocating for bone marrow transplants.
Evan Handler on Life After Cancer
'Sex and the City' actor Evan Handler talks about how he manages career, emotions, self-care -- and a new baby -- after leukemia.
Remission for Chronic Myelogenous Leukemia
Find out the specific milestones you need to reach in order to be in remission when you have chronic myelogenous leukemia (CML), also known as chronic myeloid leukemia.
Advanced Phases of Chronic Myelogenous Leukemia
Learn about the symptoms and treatment of advanced phases of chronic myelogenous leukemia (CML), also known as chronic myeloid leukemia.