Possible reasons why women want to urinate and can’t: 1. There is an acute infection of the urinary tract, when the mucosa of the urinary tract is acutely congested and edematous, and a little urine stimulation can produce an obvious sense of urination. But at this time, because the amount of urine stored in the bladder is too little, so there will be unable to urinate, generally can be accompanied by obvious pain in the small abdomen, or lumbar pain and painful feeling of urination, etc.. It is recommended to take an appropriate amount of urine for routine laboratory tests or culture tests to determine the presence of infection. 2. The presence of urethral strictures or urethral stones, resulting in complete or partial obstruction of the urethra, when a large amount of urine is stored in the bladder, because the urinary tract obstruction of urine can not be discharged in a timely manner, it will cause the feeling of not being able to urinate. The residual urine ultrasound examination will reveal a large amount of retention, which requires indwelling catheterization or urethral dilatation to remove the obstruction of the urinary tract before normal urination can be restored. 3. Neurogenic bladder, secondary to cerebral hemorrhage, cerebral infarction or type 2 diabetes mellitus, spinal cord injury and other lesions, when the bladder sensation may return to normal, but the muscle contraction strength of the bladder is poor and cannot discharge bladder urine out of the body in time, it will This results in frequent urge to urinate but inability to urinate.