UTI in girls mainly manifests urinary symptoms such as frequent urination, urgency, painful urination and discomfort in urination. In addition, typical lower urinary tract infection can also present with hematuria of the naked eye or microscopic hematuria, usually without fever and pain in the kidney area. Typical upper urinary tract infection in addition to the symptoms of lower urinary tract infection, but also at the same time, chills, high fever, lumbago, abdominal pain, renal region percussion pain obvious, may have hematuria, pus urine, in addition, some patients are often accompanied by a headache, general malaise, nausea, vomiting, nocturia and other symptoms.