The time of puberty development for boys is usually around 12 to 14 years old, and the exact age of development needs to be judged according to the individual’s physical condition, with some variations. Puberty is the period of time from the onset of secondary sexual characteristics to full maturity. The age at which puberty begins depends on when the hypothalamus-pituitary-gonadal axis starts functioning, which usually starts at 10 to 12 years of age for girls and 12 to 14 years of age for boys, two years later than for girls. Sexual development during puberty follows a certain pattern. Boys’ sexual development first manifests itself in an increase in testicular volume (when testicular volume exceeds 3 ml, it marks the beginning of puberty, and when it reaches 6 ml or more, spermatozoa can be detected), followed by growth and thickening of the penis, and the emergence of pubic hair, axillary hair growth, and the characteristics of the adult male body such as a low voice and a mustache, and this whole process takes more than five years. The development process must pay attention to the boy’s physical conditioning, maintain good dietary habits, balanced with the best not to let the boy picky eaters partiality, but also need to appropriate sports. If there is any discomfort during the developmental period, it is necessary to consult a doctor in a timely manner.