Kegel exercise is a kind of exercise to exercise the pelvis, practicing Kegel exercise will have semen flow, the reason is more, usually with physiological factors, premature ejaculation, prostatitis and other factors. 1. Physiological factors: when performing Kegel exercises, one’s emotions may be in a state of excitement, while the central nervous system excitability will also increase, in this case may be able to discharge semen. Generally more common during puberty, because puberty is more energetic, itself will have physiological spermatorrhea, exercise symptoms will be more obvious. 2. Premature ejaculation: If you suffer from premature ejaculation, repeated friction of the genitals during Kegel exercises will easily increase sensitivity, thus causing seminal emission. 3. Prostatitis: If you suffer from prostatitis, the exercise process may cause the prostate to be congested and edematous, and repeated stimulation of the penile tissues will lead to semen outflow. In Kegel exercise, if there is semen flow should be timely consultation, and through the semen test, prostate fluid test to rule out pathological factors, and then standardized treatment.