The elderly are recommended to go to the hospital for further examination to clarify the possible causes: 1. Chronic urinary retention caused by prostatic hyperplasia is most common in elderly men because the pressure of the bladder rises after urinary retention, and when the pressure exceeds the closing pressure of the urethra after a certain amount of retention, involuntary incontinence occurs, that is, urine loss, and the patient can be accompanied by symptoms such as effort to urinate and difficulty in urination. If an elderly woman has urine loss, it is usually due to pelvic floor organ prolapse, such as bladder prolapse or urethral subluxation, which can cause urine loss after activity, such as coughing and exercise, but rarely occurs when resting, so pelvic floor and related examinations are needed to clarify. 3. It is common for dementia, cerebral infarction, cerebral hemorrhage, etc. to cause innervation disorders, resulting in incomplete closure of the urethral sphincter and loss of urine.