Men usually have a discharge after erection, which is prostate fluid. If a man receives sexual stimulation, a small amount of secretion will usually flow from the urethra after erection, which manifests itself as a white or clear-colored viscous secretion, mostly prostate fluid. Prostate fluid is the secretion of the prostate gland, the general daily secretion of about 0.5 ~ 2 ml, is also the main component of semen. Local secretion of prostate fluid after erection, men in the state of sexual arousal prostate is in a state of congestion, at the same time the gonad secretion enhancement, at this time the prostate fluid will be involuntarily discharged from the urethral orifice, is a normal situation. The color is white and transparent, usually not accompanied by turbidity. Men generally have secretions after erection, is a normal situation, do not need to be too nervous. However, if the discharge of purulent secretion, considering the prostatitis, urethritis and other diseases caused, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor’s treatment.