In general, urinary incontinence refers to difficulty in urination, which may be caused by lower urinary tract obstruction, bladder underdynamics and other reasons. 1. Lower urinary tract obstruction: urinary tract obstruction is divided into upper urinary tract obstruction and lower urinary tract obstruction. Upper urinary tract obstruction refers to the obstruction of renal pelvis and ureter, while lower urinary tract obstruction refers to the obstruction of bladder and urethra. Difficulty in urination can occur due to lower urinary tract obstruction caused by various reasons. 2. Insufficient bladder power: neurological damage caused by craniocerebral or spinal cord lesions can lead to symptoms of non-contraction of the bladder and weakening of the contraction force, which can lead to the phenomenon of dysuria. In addition, difficulty in urination can also be seen in other diseases, it is recommended that patients go to the hospital in time to avoid delay.