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What Is Acute Leukemia?
Leukemia is cancer of the blood cells. This cancer causes the formation of large numbers of abnormal white cells. There are several types of leukemia that are grouped in two ways, acute or chronic. Acute leukemia is the most common childhood malignancy. Children account for 25 percent of cases.

White blood cells defend the body against infection. Blood cells grow in the bone marrow and are supposed to be fully grown when they enter the bloodstream. Leukemia causes white blood cells to lose their ability to fully mature. Immature cells take over the marrow. When this happens the bone marrow cannot make enough of the other cells found in blood, like red blood cells, normal white blood cells, and platelets that the body needs.

The onset of the disease is sudden. The symptoms may include:

• fatigue
• fever
• pale skin
• loss of appetite
• bruising or bleeding
• anemia
• bone pain
• frequent infections and
• weight loss

Treatment usually involves intensive chemotherapy. The first phase of treatment is to kill as many of the leukemia cells as possible and put the patient into remission. Once in remission and there are no signs of leukemia, the second phase of treatment begins. This type of treatment may last for several years. Less intense and less frequent chemotherapy is given during this time to kill any remaining leukemia cells.

Another treatment option is a bone marrow transplant. First, very high doses of chemotherapy wipe out the leukemia in the bone marrow. Then, new bone marrow is received from a compatible donor.

To learn more about leukemia, call the Leukemia and Lymphoma Society at (800) 955-4572, the National Cancer Institute at (800) 4-CANCER, or the American Cancer Society at (800) ACS-2345.

Disclaimer: This content is reviewed periodically and is subject to change as new health information becomes available. The information provided is intended to be informative and educational and is not a replacement for professional medical evaluation, advice, diagnosis or treatment by a healthcare professional.
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