Hi: The height of any individual is determined by the nutrition, hormones and genetic potential as evidenced by their parents height. Generally girls achieve the maximum height at puberty
, and grow only 4 to 5 cm after puberty. Usually growth is complete by 18 years. If your bones are fused then it is difficult to increase your height with hormones, and you will require surgical correction if you are desperate to increase your height and that is not advisable.