I always want to urinate. What's going on?

Always want to urinate suggested to the hospital for further examination, clear possible reasons: first, if there is urinary tract infection, can show mucosal congestion, edema, sensitivity improvement, although it will show frequent urination hospital, each time the amount of urine is not much, at the same time can be accompanied by urination pain, urgency and other performance. Need to carry out urine routine and urine culture examination, further rule out the presence of infection. Second, if there are stones, tumors, polyps and other lesions in the urinary tract, it can cause local mucosal congestion, edema, or mucosal erosion, enhanced stimulation, etc., which will cause frequent urination, and may be accompanied by urination bleeding, waist and abdominal pain and other discomfort. Further B-ultrasound, CT and other examinations of the urinary system are needed. If necessary, cystoscopy, urethroscopy and other examinations are needed to rule out the causes related to stones and tumors. Third, bladder overactivity, it is not caused by infection, mainly because of excessive frequent contraction of bladder detrusor muscle, resulting in strong frequency of urination, generally not accompanied by urination pain, hematuria and other manifestations. Routine urine examination is normal, there is no other abnormality, need to conduct urodynamic examination, to further understand whether there is frequent contraction of bladder detrusor muscle.