High blood leukocytes34 are abnormal, which may be due to infection, tissue necrosis, hematologic diseases, etc. 1. Infection: After bacterial infection, white blood cells will be elevated, and patients will have fever, cough, sputum and other symptoms. When doing routine blood tests, high white blood cells are found34. 2. Tissue necrosis: when the patient has acute myocardial infarction, extensive burns, trauma, etc., when doing routine blood tests, it will also be found that the white blood cell count is obviously elevated. 3. Blood system diseases: acute leukemia, chronic leukemia, and myelodysplastic syndromes, etc., will also be found in the blood routine examination of leukocytes high 34. The high blood white blood cell count of 34 is an abnormal phenomenon, caused by a variety of reasons, should be timely to the regular hospital to receive examination and treatment.