A 15-year-old girl is in adolescence—not a child anymore, but not yet an adult. Alongside numerous physical changes, this is also a time of significant intellectual, social, and emotional development. While every girl is different, there are common milestones.

Girls tend to mature faster than boys, and the age at which a girl stops growing in height depends on the age at which she has her first menstrual period. However, the physical condition of each girl is different, so some children may experience early or late puberty. This can significantly affect their growth.