The possible reasons why the urethral opening is always flowing white liquid: 1, suffering from prostatitis, the typical characteristics of patients with prostatitis that the urethral opening flows white secretion, called the phenomenon of dropping white. Usually also accompanied by frequent urination, urinary urgency, painful urination and painful perineal area and other discomfort, serious patients may be accompanied by poor night rest, anxiety and other symptoms. It is recommended to perform routine examination of prostate fluid and urethral secretion smear or culture examination, if clearly suffering from prostatitis, it is recommended that anti-inflammatory and anti-infection treatment, the phenomenon of white liquid flowing out of the urethral opening can disappear after cure; 2, combined with urinary tract infection, especially gonococcal infection, gonococcal infection, the urethral opening can secrete white or yellow secretion, it is recommended to perform secretion smear examination. The smear can find gram-negative diplococcus or culture test found gonococcus, can be diagnosed as gonococcal urethritis, it is recommended that anti-inflammatory treatment, the urethral discharge can be cured.