Leukemia generally known as leukemia, blood or bone marrow are abnormal white blood cell hyperplasia is generally divided into two types of acute and chronic, and acute and chronic myeloid leukemia can be divided into further or lymphocytic. Many children is acute lymphocytic leukemia of more, but mostly adults with acute or chronic myeloid leukemia. (Asians to more chronic myeloid leukemia, and Westerners in chronic lymphocytic leukemia are more common), chronic myeloid leukemia occurred in 30 ~ 40-year-old young adults, and chronic lymphocytic leukemia, many for the 60 ~ 70 over the age of the elderly. Acute lymphocytic leukemia accounts for 37 percent of children of cancer each year in Taiwan, about 300 children died due to suffering from this disease. As a result of abnormal proliferation of white blood cells would reduce or suppress other normal components of blood formation, the result would be anemia, reduced resistance to pathogens and occurrence of bleeding, and death.
Leukemia caused by the reasons, it was reported may be related to radiation, chemicals such as benzene or some chemotherapy drugs, but to determine the cause, at present remains unclear.
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