Urinary distress, urinary discomfort and pain, urinary urgency and not urinate, or frequent urination, there is always the desire to urinate but not particularly urgent, there is still a feeling of urine after urination, commonly found in acute urinary retention. Etiology: Mechanical obstruction: any obstructive lesion of the bladder neck and urethra. Dynamic obstruction: there is no organic obstructive lesion in the bladder and urethra. Hypokalemia caused by various causes etiology: such as aldosteronism, diarrhea, long-term application of diuretics, etc., which can make the bladder forced urinary muscle weak, and urinary difficulty or even urinary retention occurs. About 60% of patients 2 weeks after the onset of urethritis, gonococcal invasion of the posterior urethra appeared urinary distress, urinary frequency, up to 10 times a day and night. Check the urine routine, renal function. Bladder ultrasound. Differential diagnosis of dysuria: 1, dysuria: the main reason for dysuria is due to the obstruction of the urinary pathway or the lack of bladder contractility. 2, painful urination: in men, in addition to the pain of urination, the flow of urine seems to be very small, urine out of the strength is also very weak, sometimes even scattered and not concentrated, it may be in the process of urine out of the process of some kind of obstruction, most of the time, this situation is due to the enlarged prostate gland. However, it can also be caused by a neurological problem that paralyzes the muscles that control the bladder function, which is one of the causes of painful urination. The lower abdomen is full of pain and distension, the urge to urinate is embarrassing, the desire to urinate does not come out, restlessness and other painful symptoms.