It is normal for a 16-year-old boy to have no seminal emission. As each person’s physique is different, the development will be early or late, the boy’s puberty development period is generally from 10 to 20 years old. The fact is that there is a difference between early and late ejaculation, and it is normal for a 16-year-old boy to have no ejaculation. Ejaculation is ejaculation that occurs without sexual intercourse or masturbation. If a 16-year-old boy has a knot in his throat, normal growth of pubic hair, and a normal voice, then it means that the development is normal, and the absence of seminal emission is also a normal situation. If the habit of frequent masturbation is developed in daily life, the symptom of seminal emission will not occur. If the absence of seminal emission is accompanied by obvious features such as underdevelopment of reproductive organs and undeveloped secondary sexual characteristics, it is recommended to go to the hospital for a clear examination.