What causes sperm emission?

Spermatorrhea is a process that men must show during their development. Men generally begin to show spermatorrhea at about 13 years old, mainly because the testicles constantly produce sperm and store them in the seminal vesicles. When the sperm in the seminal vesicles is stored to a certain amount, the water will overflow, and the phenomenon of spermatorrhea will be shown. After sexual maturity, there is sexual excitement, long-term contact with sexual text and pictures, no reasonable sexual release, and sex-related dreams at night, which may increase the number of spermatorrhea.