Re: If there is too much white blood cell,do they end up destroy red blood cell

Both red and white blood cells are made in the same place, the marrow 
inside of your bones. Normally, both cell types are produced and have no 
affect on each other. If there are too many white blood cells, such as in 
leukemia, there may be fewer red blood cells. This is because the cancer 
cells start to fill up the bone marrow and there is less space for making 
red cells. The white cells don’t destroy the red cells, but they reduce 
their production.
If you want to find out more about leukemia, the Leukemia and Lymphoma 
Society has a webpage: http://www.leukemia.org/hm_lls