The recovery time of urinary tract infection in children is mainly related to the severity of the disease, treatment and individual factors of the patient, which should be analyzed on a problem-specific basis and should not be generalized. Most urinary tract infections are due to retrograde bacterial infection. If the child has an acute urinary tract infection, or if the child has mild symptoms, he or she can generally recover in 3-5 days after active anti-inflammatory treatment. If it is a chronic urinary tract infection, or accompanied by other symptoms, such as fever, the treatment time is relatively long, it may take 1-2 weeks to recover, the specific time varies from person to person. It is recommended that the child drink more water and urinate more often to expel the bacteria from the body, which will help treat the urinary tract infection. When urinary tract infections occur in children, parents are advised to take them to the pediatric department of a regular hospital in a timely manner to clarify the cause and provide targeted treatment. After treatment, if the urine routine is rechecked, if the white blood cells turn negative, it means that the child has basically recovered.