Without detailed examination and treatment, urinary system infection may further aggravate. Severe urinary system infection may cause fever, high fever, chills, and even septic shock. Urinary system infection may be fatal, that is, it may lose life. Therefore, do not think urinary system infection is a minor disease and do not pay attention to it. Urinary system infection is mainly caused by pathogenic microorganisms such as bacteria and fungi. If urinary system obstruction, stenosis and malformation are combined, the treatment will be more difficult. Urinary system infection requires routine urine, color ultrasound, CT and other examinations to make a clear diagnosis, and then select sensitive antibiotics according to drug sensitivity test for detailed treatment.