The purpose of urine culture, many people will occur urinary tract infections, general urinary tract infections can be treated empirically with certain antibiotics for anti-infection treatment, usually the symptoms will improve in 2-3 days. However, for some recurrent urinary tract infections or urinary tract infections that do not improve with repeated medication, called complex urinary tract infections, this condition requires a clean urine culture to determine if there are any special bacteria in the urine that cause the infection. If special bacteria can be cultured, by the way, you can do a drug sensitivity test to determine which antibiotics are more sensitive to this bacteria, and then you can select the right antibiotics.