There are many reasons for frequent urination, which can be categorized into physiological and pathological, and not all diseases causing frequent urination are accompanied by abnormal urine routine results. 1. physiological urinary frequency: common in drinking too much water, mental stress, etc., manifested in increased urination, urinalysis is often normal, no pain, urinary urgency and other symptoms. 2. Pathological frequent urination can be divided into four common causes: polyuria (such as diabetes mellitus, urethritis, renal failure), accompanied by abnormal urine routine results; inflammatory (cystitis, urethritis, prostatitis, etc.), urinary routines often inflammatory manifestations. Neurogenic (hysteria, neurogenic bladder, etc.), urine routine usually has no abnormal manifestations; reduced bladder capacity (bladder space, bladder compression during pregnancy, bladder tuberculosis, etc.), urine routine may have no abnormal manifestations. It is important to note that the cause of dysuria cannot be determined by the urine routine alone, and a definitive diagnosis needs to be made by taking into account the history of the patient and further improving the relevant investigations (e.g., ultrasound of the urinary tract, renal function tests, etc.), and further treatments under the guidance of the doctor.