The development of a girl at the age of ten and a half is normal, and will not affect the child’s height. In addition to congenital factors and parental genetics, the height development of girls is also related to diet and lifestyle habits. 1. Dietary habits: the child’s height development diet needs to be balanced, eat more protein and calcium-rich foods such as milk or eggs, meat, etc., as well as more vegetables and fruits to supplement the body’s vitamins in order to meet the energy and nutritional needs of growth and development, in order to promote growth and development. 2. Lifestyle: At this age, girls can promote the development of their height by maintaining a moderate amount of exercise every day, such as playing basketball, swimming and so on. And maintain a healthy routine such as early to bed and early to rise, do not stay up late and so on is conducive to the child to grow taller. 3. congenital and genetic: children’s growth and development by the parents of genetic and congenital factors, if the parents are taller, the height of the offspring is generally higher. Girls 10 and a half years old development is a normal phenomenon, the growth of the child’s height is a combination of factors, if parents have questions about the growth and development of girls, it is recommended that timely specialist consultation.