Seminal emission once a week is basically normal. Men generally begin to develop sexually at the age of 12, and by the age of 18 sexual development is basically mature, during which sperm loss will gradually occur. As the testicles continue to produce sperm, they are transported to the seminal vesicles in the epididymis and vas deferens. Because men have sexual desire during the developmental stage, the sympathetic nerve mainly suppresses the erection of the penis during the day, and after sleep at night the parasympathetic nerve is excited, the penis is erect, and there is excitement when the glans rubs against the underwear, and when the semen is stored in the seminal vesicles to a certain amount the phenomenon of seminal emission will occur, that is, the phenomenon of water being full is overflowing. For male spermatorrhea it is recommended to wear loose underwear before going to bed and not to be exposed to more sexual stimulation.