It is possible to grow to 180cm at the age of 15 years old 170cm. Adolescents in the growth and development period, the epiphyseal cartilage cells in the bone continue to divide, proliferation and ossification, so that the bone continues to grow, the height of the corresponding growth. After adulthood, the epiphysis closes, usually can not grow taller. Generally speaking, 15 years old is still in the period of growth and development, pay attention to diet, supplemental nutrition and strengthen exercise, it is possible to grow from 170cm to 180cm. Teenagers need sufficient nutrition during the growth and development period, pay attention to a balanced diet, do not picky about food, more intake of chicken, duck, fish and meat, dairy, egg products. At the same time, you need to participate in more outdoor activities, active exercise, appropriate sun exposure, to promote the growth and development of bones. If the innate genes and the acquired situation are suitable, it is possible to grow from 170cm to 180cm at the age of 15.