Boys generally close their epiphyses around the age of 22 and their height will stop growing. When there are characteristics such as long-term unchanged height, maturity of secondary sex characteristics and changes in living habits, it may represent height stopping growth: 1. Long-term unchanged height: If the original height grows quickly, then the height suddenly becomes slower than usual, or the height does not change for more than a year, it may be a sign of height stopping growth; 2. Secondary sexual characteristics development maturity: if the adolescent boy began to grow a beard, testicles significantly larger, voice change, the body began to appear muscle and other secondary sexual characteristics development maturity phenomenon, it means that height may stop growing; 3, life habits change: in the growth and development of children’s body needs more nutrition, the amount of meals will be very large, because the sleep period can promote body growth and development, so more sleep, if suddenly becomes less appetite and sleep time is reduced, it may be a signal for the body to stop growing taller; 4. Epiphyseal closure: epiphyseal closure is a sign to judge the growth of bones, if the hospital examination shows that the epiphyseal line is closed, it means that the body bones stop growing and height basically stops growing. It is recommended that adolescent boys should strengthen nutrition, eat more food containing protein and vitamins, such as fish, lean meat, eggs, milk, etc., and ensure sufficient sleep every day to facilitate the growth and development of the body.