The premise of secondary growth is that the epiphysis is not completely closed, if the epiphysis has been completely closed, there is no way to secondary growth; if the epiphysis is not completely closed, you can through the life adjustment, exercise and drug treatment to promote secondary growth. 1. Life adjustment: In life, we should ensure the intake of various nutrients, increase the intake of protein, calcium, vitamins and other foods, such as fresh fruits and vegetables, milk, soybean products, etc., and at the same time, ensure sufficient sleep, avoid excessive fatigue, and promote the secretion of growth hormone, which is of positive significance to the development of bones. 2. Exercise: you need to do proper exercise in your daily life, do more stretching and jumping exercises to promote the growth of bones, joints and muscles, which is of positive significance to the secondary growth. 3. medication: if the shortness of the body is related to the lack of growth hormone in the body, you need to go to the hospital for hormone level examination, if necessary, follow the doctor’s instructions to treat the underlying disease, you can stimulate the second growth of height through the injection of growth hormone. If you want to grow taller twice, you need to clarify the epiphyseal closure situation and take targeted intervention measures, if the epiphyseal closure has already occurred, there is no way to achieve the purpose of growing taller twice.