It is recommended to go to the hospital for further examination to clarify the possible causes: First, the state of urinary incontinence can appear involuntary flow of water from the urethral orifice, which may be seen in cases of urethral sphincter injury or filling incontinence, patients often have a sense of holding urine or have a history of urethral surgery, when involuntary flow of water from the urethral orifice can appear, further urethroscopy, bladder function measurement, residual urine examination, etc. are needed to clarify The cause of the problem may be due to prostate enlargement. It may be caused by prostatic hyperplasia, it may be caused by a tear in the urethral sphincter, or it may be caused by a neurogenic bladder. The second, after receiving sufficient sexual stimulation, the urethra mouth can flow out of the sticky prostatic fluid, after stopping the relevant sexual stimulation will not occur this phenomenon, more sensitive patients receive sexual stimulation, even the phenomenon of seminal emission, semen from the urethra mouth involuntary overflow. The third, when suffering from urethritis can appear the urethral orifice involuntary outflow of white or yellow secretions, accompanied by a certain malodor or pain, itching, burning, etc. in the urethra.