In today’s society we all “look to our sons to be the best”, but is there any special attention to boys? Pre-school boys have more advantages than girls in terms of physical development. They are larger, have greater lung capacity than girls, and have proportionally larger internal organs (heart and lungs) than girls. In daily life, boys have a higher calorie intake than girls, consistently higher basal metabolism, less body fat than girls, and more muscle than girls. In addition, because boys have slightly longer arms than girls, boys have greater strength and speed than girls in percussive and throwing activities. All of this explains why boys have energetic behavior and excessive physical activity. Boys are more physically active and engage in more physically aggressive behaviors than girls and are also prone to be elicited aggressive behaviors. Boys are less adept than girls at replacing impulsive behavior with fairly mature thinking; girls have the potential to improve their performance in kindergarten through practice, whereas boys do not, and boys are far worse than girls in terms of self-control of behavior. We know that the earliest physical change in boys’ pubertal development is the beginning of testicular enlargement, with each testicle measuring only 2-3 cubic centimeters (the size of a small date) in childhood, beginning to increase in size between the ages of 8 and 10, and mostly exceeding 5 cubic centimeters between the ages of 10 and 12. During puberty, boys’ testes increase rapidly until they reach 15-25 cubic centimeters. Therefore, testicular changes are a sensitive indicator of pubertal development in boys. With reference to the above physiological and psychological characteristics, we summarize the new “three disciplines and eight disciplines” for parents of boys. Parents should pay attention to the location of the boy’s testicles, whether they are sunk in the scrotum, how to 3 years old is not found in the scrotum of the testicles sunk in time to seek medical examination, to avoid the testicular ectopic lead to future testicular development disorders. Observation is mainly done after the child is asleep and the scrotum is naturally relaxed, then touch and check. Second, the boy’s behavior should be noted Boys are active and have a strong curiosity and desire to explore, along with, the body will grow curious about the physical situation, parents should promptly observe, to avoid damage to the boy’s external genitalia because of curiosity, such as the insertion of foreign objects, foreign body cuts and pulling injuries. Parents should accompany the boy in the process of growing up in time to inform, the characteristics of the boy’s physiological structure, the importance of protecting the external genitalia, so that boys in all kinds of activities early know to protect the external genitalia to avoid unnecessary injury, causing regret. Third, the boy’s eating habits to pay attention to Now because of the change in dietary conditions, children in the life of more exposure to various types of food, boys due to physiological characteristics to avoid some of the adverse growth of food early, such as high calorie, fried food, food that may contain estrogen, so that the normal development of boys, to avoid endocrine disorders leading to obesity, abnormal reproductive development and other problems, to reduce the rapid development of future adolescence The phenomenon of delayed development and problems that appear. 1, boys underwear to loose, to protect the genital local circulation and cooling, conducive to growth and development; 2, boys diet to be healthy, reduce high-calorie diet and snacks, to avoid obesity; 3, boys to pay attention to sports safety, especially to protect the external genitalia, to avoid violent impact; 4, boys to mainly avoid too much or premature touch genitalia, to guide and inform the harm in time, to avoid bad habits; 5, boys To know the physiological differences between boys and girls as early as possible, to reduce unnecessary curiosity, the correct treatment of male and female physiological structure is different; 6, boys such as disease toxic infections, such as mumps, etc., to early treatment and full observation, to avoid the emergence of comorbidities, such as combined orchitis, resulting in long-term damage to the genitals; 7, boys to health psychological guidance, training to become a loving, courageous, energetic little man, to avoid raising greenhouse Little seedlings, the lack of growth in the formation of bad character behavior habits; 8, boys also need to learn to flush their genitals independently, develop good habits, timely urination, and the entire discharge does not leave residual urine to the urethra, to avoid the formation of foreskin in the foreskin scale, such as generated in time to the hospital to deal with cleaning. After the birth of the boy, parents should take it seriously, not too spoiled nor too negligent indulgence. This will have a negative impact on the growth of the boy, to gradually develop a problem to communicate with parents in a timely manner habits. Parents in the boy several physiological and behavioral changes in the period to timely counseling, enough attention to avoid possible problems, such as curiosity in early childhood, school-age behavior constraints.