Frequent urination, urgent urination. What's going on?

Frequent micturition, urgency, urine is not most of the urinary system infection caused, including acute cystitis, urethritis, etc. Also need to consider is prostatitis, prostate hyperplasia and other diseases. Suggest to go to the hospital as soon as possible to do color ultrasound, urine routine, cystoscopy and other examinations to determine the cause, usually to drink more water, frequent urination, can not hold urine.