The adult height of a normal person depends on the ability to grow at a reasonable rate during the three stages of infancy, childhood, and adolescence. Genetic factors, metabolic diseases, endocrine system disorders, and nutritional deficiencies can all affect a child’s height. Before the age of two, especially at the age of one, the supply of nutrition has a significant impact on height; after the age of three, the role of growth hormone in height is highlighted during childhood; at puberty, sex hormones are quite important for height, because the sudden increase in height during puberty is due to the combined effect of sex hormones and growth hormone. Parents should pay attention to the characteristics of their children’s growth and development, and give correct and scientific parenting. Infant growth is usually not affected by genetics, but nutrition is a key factor affecting the growth of children: (1) reasonable feeding, timely addition of complementary foods. Infants should add complementary foods in time after they reach 4 months of age, because 4-8 months is a critical period for infants to form the conditioned reflexes needed to swallow solids. If this transition cannot be completed in time, solid food will not be swallowed and will be easily vomited, thus affecting the growth and development of the infant. (2) Try to diversify food. In terms of nutritional psychology, if the variety of food during infancy is too monotonous, the chances of partiality and picky eating will greatly increase in childhood. Therefore, food should be as diverse as possible, especially in infancy and early childhood, try to contact a variety of food, not only to ensure a comprehensive supply of nutrients, but also to prevent the picky eating behavior later. In childhood, children can grow 5-7 cm per year after the age of 3. Whether it is 5 cm or 7 cm depends on a combination of genetic, environmental and nutritional factors, so parents should pay attention to their children’s height and measure it every year during this “steady” growth period. (1) Measure your child’s height once every three to six months. The growth rate of people is uneven, each person has its own characteristics, so too often to measure is not a scientific attitude, some parents to measure the child’s height, this month the growth of 0.5 cm, the next month only 0.3 cm, then anxious to find a doctor. In fact, as long as the measurement once every 3-6 months, the annual increase of 5-7 centimeters will be “up to standard”. (2) Precocious puberty should be seen by a pediatric endocrinologist, because precocious puberty affects the final height of the child. The height of a child with precocious puberty is described as “a human being for the first time, but not as a human being for life”. The precocious puberty of an individual is not to be confused with the early development of a group. Therefore, parents should not think that it is okay for their children to develop earlier because their children are growing earlier now. If a girl shows one or more secondary sex characteristics such as breast enlargement, pubic hair and axillary hair growth before the age of 8, or if the first menstruation occurs before the age of 10, or if a boy shows sexual development such as penis and testicles enlargement and pubic hair growth before the age of 9, then it is precocious sexual development, and it is necessary to consult a pediatric endocrinologist in time. During puberty, due to the action of growth hormone and sex hormone, girls can grow an average of 25 cm and boys 30 cm. Parents should note that if the height of girls after menarche and boys two years after the change of voice is not ideal, it is too late to intervene: (1) attention to the sudden increase in height after development, girls about a year after breast development, boys before the change of voice, height growth accelerated, the fastest girls can grow 8 cm per year. Boys grow 11 cm per year. Girls can grow an average of 5 cm after menarche, and boys can grow another 5-10 cm after voice change. So throughout adolescence, girls can grow an average of 25 cm and boys 30 cm. Parents should be aware of this growth pattern. (2) Sleep and exercise can help grow taller. During adolescence, adequate sleep helps adolescents grow at a high rate; exercise such as jumping rope, pull-ups and other aerobic exercises can significantly increase a child’s growth rate, and also increase the duration of height spurt. Therefore, adolescence should pay particular attention to sleep and exercise, which will be important for the height of adulthood.