By the time a boy is 13 and going through puberty, he might be about to start or is already going through growth spurts. A boy will reach his peak growth spurt when he is 13.5 years old. A growth spurt could last 2 to 3 years, where a boy could grow 4.5 inches in this time. A boy’s weight and height might see many changes when they are a teenager. They could lose and gain weight quite rapidly, and also grow taller seemingly overnight. Every child matures and grows at different rates when they are a teenager.

Most boys will also start to develop sexually from the age of 10 until the age of 13, and will carry on growing until they are about 16. Sexual maturation is also called puberty. Dramatic changes will take place for both girls and boys. Hormones will transform a boy and girl into a physically mature teenager as his or her body develops. It is important for a boy to eat a well-balanced and healthy diet. He should engage in a physical activity every day to make sure that he grows and develops properly during his teen years.

Boys will tend to start showing the physical changes that come with puberty from the age of 10 up to the age of 16 years. They will grow quite quickly between the ages of 12 up to 15 years old. The growth spurts in a boy are usually about two years after that of a girl. By the time he is 16 years old, he could stop growing but his muscles will carry on developing.