Children with 30 x 10^9 white blood cells / L is very serious, normal white blood cells for the (4-12) x 10^9 / L between, white blood cells 30 x 10^9 / L indicates the presence of serious bacterial infections, common, such as acute suppurative tonsillitis, acute pneumonia, suppurative meningitis, etc., the C-reactive protein will be increased at the same time. If the baby’s leukocyte increase is accompanied by poor mental status, and no obvious focus of infection is found, it is necessary to go to the hospital in time to find the cause of the disease, so as not to cause sepsis and other serious consequences. If the acute purulent tonsillitis, then give active anti-infective treatment, because the focus of infection is clearer, most after a full course of effective antibiotic application, the course of the disease in about two weeks or so cured.