Urinary tract infection is a common infectious disease of the urinary system. 15-year-old urinary tract infection, generally need to be based on the patient’s specific situation, the choice of causative organisms sensitive antibiotics for treatment. Commonly used drugs are amoxicillin, cefuroxime, ceftriaxone sodium, etc. It is recommended to use drugs under the guidance of a doctor. 15-year-old urinary tract infection, commonly used drugs are amoxicillin, ampicillin and other penicillin drugs, but for penicillin allergy patients need to be prohibited. Cefuroxime, ceftriaxone sodium, ceftazidime and other cephalosporins can also be used as prescribed. In addition, patients with refractory nosocomial infections and immunodeficient pyelonephritis can be treated with desmethylvancomycin. Patients with urinary tract infections at the age of 15 need to choose medication according to the type of causative organisms, and patients should follow the doctor’s instructions to use the medication, and not blindly use it on their own. At the same time, during the treatment period, patients should pay attention to personal hygiene, try to keep urination smooth, drink more water, diligent urination is also conducive to the discharge of inflammatory products.