Women always want to urinate, but only a little each time for the following reasons: First, acute infection of the urinary tract, when the mucosa of the urinary tract is congested, edema and other changes, the sensitivity of the mucosa is significantly increased, a little urine stimulation can produce a strong sense of urination. Therefore, there will be frequent urge to urinate but not much urine, and it can be accompanied by pain during urination or cloudy urine, pain in the small abdomen, low back pain and other symptoms, which require routine urine examination and urine culture test to confirm the presence of infection, The urinary tract stones, especially those in the lower part of the ureter and bladder, can produce a strong feeling of urinary irritation. At the same time, it can be accompanied by back pain or hematuria, etc. Ultrasound examination of the urinary system is needed to exclude the presence of stones; thirdly, if you have overactive bladder disease, you can experience strong urinary frequency and small urine volume, usually not accompanied by cloudy urine, hematuria or painful urination, urodynamic examination, routine urine examination and urine culture examination are normal.