Dreaming ejaculation at night is clinically known as seminal emission, which refers to ejaculation that occurs in the absence of sexual intercourse and masturbation. It is a normal physiological phenomenon and a sign that the male reproductive organs are beginning to mature. Generally nowadays, boys enter pubertal development around the age of 10, and it is possible for the first seminal emission to occur at the age of 13-15. In adolescence, due to the stimulation of pornographic publications or videos, the brain is in a state of excitement, sleep involuntarily appear sexual fantasies, etc., due to the long-term no sex life of men, the so-called semen full of overflow will appear semen leakage. The number of spermatozoa varies from person to person, generally seven days to half a month, is a normal phenomenon. If you have frequent seminal emission, such as once every 1-2 days or several times a day, you should go to the urology department or men’s department for consultation.