Urinary tract infection is divided into lower urinary tract infection and upper urinary tract infection, how long recovery is related to the type of infection, as follows: 1, simple acute cystitis: 3 days of therapy, that is, 3 days of medication, can recover; 2, with obstruction, stones or urinary tract malformation of urinary tract infection, the use of 7-14 days of therapy to see results, or longer treatment time; 3, recurrent urinary tract infection: refers to recurrent bacterial urinary tract infection, in the clinical need to repeatedly do urine culture, to determine whether it is a relapse or new, and then take drug treatment better.