For patients with urinary tract infection hanging cephalosporin for several days, it needs to be decided according to the severity of the urinary tract infection, according to the performance of the patient’s urinary routine, for example, the number of white blood cells in the urinary routine is relatively high, greater than (++), indicating that the urinary tract infection is relatively heavy, it needs to hang saline for 3-5 days, and then recheck the urinary routine to decide whether to continue the medication. If the number of white blood cells in the urinary tract infection is less than (+), it means that it is a mild urinary tract infection, usually only need to hang cephalosporin 1-2 days, even without hanging saline, oral antibiotics can also solve the problem. In addition, patients should drink more water and rest more.