Frequent but nothing. What's going on?

Urinary intention frequent, but there is no urine, this is the performance of urgency, but also frequent micturition. This situation is most common is urinary tract infection, bladder stones or prostate hyperplasia, urinary tract tumor stimulation caused by, may also be overactive bladder disease. If urinary tract infection, should eat broad-spectrum antibiotics, antibiotics recommended levofloxacin, 0.2g each time, twice a day. If bladder overactivity, should bladder area hot compress, drink water, regular urination, can eat Wei Xikang, can alleviate the symptoms of bladder spasm.