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The Disease Leukemia

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Leukemia occurs when white blood cells transform into their DNA. Other alterations in the cells that are not even fully understood also causes leukemia. These abnormalities make the cells grow and multiply causing the normal cells to die. The formation of leukemia depends upon some factors like the age of the patient, the type of leukemia and to what extent leukemia has spread (Smith et al, 1994).The leukemia is classified into various categories. These include acute leukemia, in which the abnormal blood cells are not mature and can’t work normally as they grow rapidly. While in Chronic leukemia the cells function properly as they are mature and a person can survive for a long time without treatment, for many years. In Myelogenous leukemia, the myeloid cells are affected which risen up the white blood cells and red blood cells (Gribben, 2008).There are four main types of leukemia found. That is acute myeloid leukemia which is found in children and adults, and then it is acute lymphoblastic leukemia which is found in youngsters. Chronic myeloid leukemia mainly affects the adults. Chronic lymphocytic leukemia is which is found in adults but it is not harmful and a person suffering from it can survive without treatment for a long time. Leukemia is named according to the type of cell that is affected. Other types of leukemia are hairy cell leukemia, chronic myelomonocytic leukemia and Chronic Juvenile myelomonocytic leukemia (Peacock, 2000).There are various symptoms of leukemia. The symptoms of his disease mainly depend mainly on the type of leukemia being suffered. Usually, there is damage to the bone marrow as the normal cells are replaced by abnormal cells causes loss of blood platelets. This causes frequent bleeding as the blood cells decreases and this cause anemia(a disorder of blood).