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Leukemia is when there is an abnormally large number of white blood cells in the bone marrow. The white blood cells crowd the bone marrow and flood the blood stream. Then the white blood cells can’t perform the proper role of protecting the body against disease.
Cancer spreads extremely fast. It does this because one cell will become cancerous and then start multiplying. This one cell will never stop multiplying. The one cancerous cell will have eventually multiplied enough to form a tumor.
A cell is cancerous when it continually multiples. One cell will start multiplying and then never stop. This cell will continually be making an endless number of clones. This is what makes a cell cancerous.
It all starts with one cancerous cell Copy of cancerous cell Copy of cancerous cell Copy of cancerous cell