Girls generally do not grow taller when they reach the age of 19. Girls grow to 18-20 years of age when the bones are basically mature, when the epiphysis of the bilateral tibial tuberosity completely closed, the height of the girl will not continue to grow taller, but the specific situation varies from person to person, due to the differences in the body, the degree of individual development and nutritional status of the individual, so girls grow and develop the time will also be different. If a girl develops later, and the daily nutritional status is better, then the development of the growth stage will be better, the development will continue for a longer period of time, may be in the age of 20 years old, there is still a possibility of growth; if the girl’s nutritional status is poorer or the development of the time is earlier, the growth of the stage will end earlier, may be in the age of 18 years old or earlier end of the growth of the body height. Girls in the growth stage can participate in appropriate physical exercise, such as playing basketball, badminton, swimming, etc., for the growth of height has a more positive significance.