No urine but water flow out may be chronic prostatitis or urethritis and other diseases lead to. 1. Chronic prostatitis: pathogenic bacteria mainly include Escherichia coli, Aspergillus and so on. It is mainly caused by retrograde infection through the urethra. The main manifestations include changes in urination, white secretions from the urethra after urination. At the same time, there will also be perineum, lower abdomen, hidden pain discomfort. 2. Urethritis: generally gonococcal urethritis will appear such symptoms. The general manifestations include redness, swelling and stinging pain in the patient’s urethra, as well as a large amount of purulent discharge from the urethra and discomfort in urination. The specific cause of the disease also need to consult a regular doctor, under the guidance of the doctor’s diagnosis and treatment.