To determine whether a girl can grow taller in high school, you can improve the wrist or knee joint X-ray film, according to the epiphysis, bone age comprehensive judgment. Generally speaking, girls in high school can grow a little taller, to accurately judge, you can go to the hospital to improve the wrist or knee X-ray, check whether the epiphysis is closed, if the epiphysis is not closed, then there is still room to grow taller. Girls’ puberty is roughly from 9 to 18 years old, and the average age of high school children is 15 to 18 years old, so high school is generally in the girl’s puberty. Puberty is the second peak of the normal height development period, so under normal circumstances, girls can grow a little taller in high school. Overall, the final height mainly depends on genes, nutrition and exercise, etc. If you want to grow taller during the growth period, it is recommended to supplement nutrition reasonably, and supplemented with appropriate amount of exercise.