The diagnosis criteria of urinary tract infection are as follows: 1. typical medical history, mostly holding urine, drinking little water, eating spicy and irritating food, unclean sex or being in an unclean environment, etc. 2. typical symptoms are frequent urination, urinary urgency and painful urination. 3. laboratory tests, mainly routine urine tests, can see a large number of white blood cells and even pus balls, and urine bacterial culture can be done to culture bacterial strains. 4. physical examination. There are no typical positive signs of urinary tract infection. Patients diagnosed with urinary tract infection should be treated with adequate antibiotics in a timely manner to avoid the formation of chronic infections that persist, while abstaining from spicy and irritating foods and allowing patients to drink plenty of water to ensure daily urination of more than 2L.