Possible causes of urinary tract infections: 1, when there is a urinary tract infection, the mucosa of the urinary tract is congested and edematous, there will always be a sense of urinary irritation, the patient will always feel frequent urination, want to urinate or accompanied by a sense of incomplete urination and other symptoms, accompanied by painful urination, abdominal pain, etc. It is necessary to carry out routine urine tests to further confirm the presence of infection. 2, if there is a urinary tract stone, it can also cause local irritation and symptoms of frequent urination, urinary urgency, total desire to urinate, accompanied by pain in the lower back and abdomen, or symptoms of carnal blood. If there are stones in the urinary tract, it can also cause local irritation symptoms such as frequent urination, urinary urgency, and the feeling of always wanting to urinate, which can be accompanied by pain in the lower back and abdomen, or hematuria, it is recommended to perform ultrasound examination of the urinary system to rule out the presence of stones in the urinary tract. 3. CT, ultrasound and urodynamic examination are needed to further clarify the presence of related diseases. Patients with overactive bladder disorder who have a constant urge to urinate without any painful urination or hematuria are commonly seen in women.