WBC existed in the normal human body is 4 to 10,your
target somewhat high,When there is inflammation,blood ,urine WBC inside will increase.Some white blood diseases will increase.in addition ,doctors often analysis to determine whether there is infection in patients.in general ,infection can cause WBC increased.But not necessarily exist in certain WBC increased in infection.
Many physiological factors can cause the total number of WBC increased. For example, vigorous exercise; manual;.