Leukocytes 3 + serious, the first result of the examination is considered to be the routine urine examination. Because the urine routine signs are selected how many white blood cells +. 3 + severity, depending on whether it is obvious symptoms, whether there is urinary urgency, urinary pain, urinary frequency symptoms, but also to see whether the blood routine of white blood cells more than normal value. If there is a combination of all these symptoms, then three plus white blood cells is an obvious infection, to actively anti-infection treatment, if not given active treatment of urinary tract infection, there is a risk of serious infectious shock, or sepsis, septicemia these and other infectious diseases, the situation is also worse. Therefore, it is important to note that if these symptoms occur, anti-infective treatment should be given aggressively.