The normal range of absolute neutrophil value is (2.0~7.0)×10⁹/L, and exceeding the upper limit of the normal range is considered high neutrophil. Increased neutrophils may be physiological, such as pregnancy, strenuous exercise, after a full meal or shower; it may also be pathological, such as infection, trauma, poisoning, certain hematologic diseases and tumors. 1. Physiological elevation: high neutrophils may occur after pregnancy, strenuous exercise, full meal or shower. This situation usually does not require special treatment. 2. Bacterial infections: such as acute pharyngitis, purulent tonsillitis, meningitis, pneumonia and other patients, can appear neutrophil elevation. These patients usually need to be treated with anti-infective drugs, including levofloxacin. 3. Severe trauma: such as burns, trauma, etc. can also be elevated neutrophils. These patients should be actively rehydrated, anti-infective treatment, drugs as above. 4. Poisoning: patients with food, drug and heavy metal poisoning will also have elevated neutrophils, such as acute lead and mercury poisoning. 5. Tumor and hematological diseases: patients with malignant tumors, certain hematological diseases such as most leukemias, true erythrocytosis, etc. can also have increased neutrophils. After treating the primary disease, the neutrophil count may decrease. Such as acute myeloid leukemia to be a sugar cytidine and other drugs chemotherapy. Warm reminder: patients with high neutrophil counts should consult a hospital in time to clarify the cause of high neutrophil counts and be treated under the guidance of a doctor.