Urine more frequent urine volume less need to go to the hospital for further examination to clarify the cause, and the possible causes are: 1, the existence of urinary tract infection, when the urinary tract mucosa epithelial congestion, edema, sensitivity increased, when the storage of a small amount of urine can produce a strong sense of irritation, so the patient will appear to increase the frequency of urination, but each urine volume is not much, at the same time can be accompanied by lumbago, abdominal pain or painful urination Symptoms. At this time, urinalysis is needed to further rule out infection.2. The presence of stones in the lower part of the ureter can stimulate and produce symptoms of urinary tract irritation, especially the closer the stones are to the bladder, the more severe the irritation. In this case, the patient will experience a decrease in urine volume, but the frequency of urination will increase significantly, and the patient may even experience difficulty in urination. 3. Overactive bladder syndrome, which is caused by frequent contraction of the detrusor muscle and leads to frequent urination without any pain, and only shows an increase in the number of times and a small amount of urine. If the urine test or urine culture test is completely normal, further urodynamic examination is needed to further confirm the diagnosis of overactive bladder.