I've always wanted to pee, but a little. What's going on?

There has been urine intention but a little urine, this situation is mainly divided into two categories: first, the existence of related diseases caused by acute or chronic urinary retention, there is a large amount of urine in the bladder can not be discharged from the body, this situation requires indwelling catheter, and then color Doppler ultrasound and other corresponding examinations, clear specific causes, and then take corresponding measures. Second, the patient has urination dysfunction, there is no organic related disease, that is to say, there is no urine in the bladder, but there is still the feeling of wanting to urinate, need symptomatic treatment, and then carry out corresponding examination, clear cause, carry out corresponding treatment. Under normal circumstances, no matter which case, after the cause is removed, the patient's urination dysfunction and sensory disorder can be improved and cured.