The more rapid age of sexual development in boys is between 12-18 years old. Generally wait until the age of 12-13 years old, male reproductive organs have basically developed, boys will appear secondary sexual characteristics, such as beard, pubic hair, armpit hair, etc. are constantly appearing, the sexual organs are developing more rapidly. It is recommended to develop good living and eating habits, not to stay up too often or masturbate too often, and not to have sex too early, otherwise it will have a negative impact on the boy’s health.