Urinary tract infections generally refer to infections of the urinary system, i.e., urinary tract infections. Commonly induced urinary tract infections include structural urinary tract obstruction, urinary system structural abnormalities, and low body immunity. 1. Structural urinary tract obstruction: If you suffer from urethral stones, prostate hyperplasia, prostate tumors and other diseases, you will trigger structural urinary tract obstruction, resulting in urine aggregation, so that the germs in the urinary system are not easy to be flushed out, so that the germs localized massive reproduction, causing infection. 2. Abnormal urinary system structure: renal dysplasia, renal pelvis and ureteral malformation, polycystic kidney and other reasons, all belong to the urinary system structural abnormality, belong to the common predisposing factors of urinary tract infection. 3. low immunity: if you suffer from diabetes, AIDS and other diseases or long-term use of immunosuppressive drugs, may lead to patients with low immunity, the chances of urinary tract infection pathogens will also rise. Urinary tract infection may also be caused by other factors, if you suspect that the urinary tract infection, it is recommended that patients do a good job of private hygiene and care, and go to the regular hospital in a timely manner for treatment.