If you want to urinate all the time, but just a little bit each time with pain, the possible causes are: first, suffering from urinary tract infection, when the above symptoms can appear, because the mucosa of the urinary tract is congested and edematous, accompanied by mucosal erosion, etc., so there is a strong desire to urinate, but the volume of urine is not much accompanied by pain, etc., you need to carry out routine urine examination, urine culture examination, and wait for further diagnosis of the existence of infection; second, the urinary tract Secondly, there may be stones in the urinary tract, which can cause local pain, strong frequency of urination, and may even be accompanied by symptoms such as hematuria, and may also be accompanied by pain in the lower back and abdomen. Thirdly, if there are changes in the urinary tract, such as tumors and polyps, which can cause increased local mucosal irritation, frequent urination, but not much urination, painful sensation, etc., and may be accompanied by flesh-eye hematuria or obstruction, further CT or ultrasound examination of the urinary system is needed to rule out polyps or tumors and other related lesions.