The stage of sexual development is mostly considered to be puberty, which is characterized by enlarged testicles, growth and thickening of the penis as well as the appearance of a beard, pubic hair, seminal emission, rapid growth in height, protruding laryngeal knots, and a low voice. Puberty is the transition period from childhood to adulthood. Under normal circumstances, the age of male puberty is 11 to 13 years old, and the development of secondary sexual characteristics is one of the important features of this period. According to relevant authoritative data, male development during puberty is characterized by enlargement of testicles and thickening of the penis, and the development of seminal vesicle glands and prostate glands at the same time as the development of the penis, so men will begin to experience seminal emission. Secondly, in addition to the development of reproductive organs, males will gradually show rapid growth in height, beard, pubic hair, armpit hair, prominent laryngeal nodes, and at the same time, they also reach the stage of vocalization, and their voices begin to become low. During the process of development, males need to strengthen adolescent health care, actively exercise, balanced nutrition, ensure sufficient rest time, and also pay attention to health care education.