Frequent seminal emission in the night dream may be caused by physiological factors such as no sex life for a long time or too much pressure at work, or it may be caused by pathologic factors such as prostatitis and other infections of the reproductive system. The fact is that the phenomenon of seminal emission occurs during sleep, and it usually occurs when a man reaches puberty. If the patient is a young man without a normal sex life for a long time, one or two times a week, generally belong to the normal physiological phenomenon, do not have to worry too much, and do not have to do special treatment. If frequent seminal emission occurs, consider that it may be caused by the reproductive system infection, such as seminal vesiculitis, prostatitis and so on. At the same time, the patient sleeps in underwear too tight on the penis is easy to cause pressure, will also stimulate the penis lead to spermatorrhea. If the night dream often semen leakage is more frequent, or uncomfortable symptoms, you should consult a doctor in time.