Gout (type of arthritis due to uric acid buildup in the blood).Eclampsia (seizures or coma in a pregnant woman).It is important to realize that an abnormal increase in one type of white blood cell can cause a decrease in the percentage of other types of white blood cells.Īn increased percentage of neutrophils may be due to: High white blood cell counts may be due to inflammation, an immune response, or blood diseases such as leukemia. Abnormal or immature white blood cells may indicate leukemia or bone marrow invasion by cancer or infection. Any infection or acute stress increases your number of white blood cells.