A growth spurt means your body is changing more and more into a grown-up. You'll know when this happens. Your baby face will start to look more adult-like. Your clothes and shoes will feel tighter. You'll gain weight. And you'll get stronger as your muscles grow bigger.
The peak growth spurt for boys usually happens about 2 years after puberty starts. When it does, you'll have fuller, broader shoulders and bigger feet and hands. One sign a growth spurt is starting is a rapid increase in shoe size.
A kid going through puberty usually grows about 4 inches taller every year until he turns 17. After age 17, your height probably won't change. About 25% of a person's lifetime growth in height happens during puberty.
How tall you become usually depends on how tall your parents are. If you have tall parents, you'll probably be taller than average. If your parents are short, you'll probably be short, too.
A growth spurt can also make you feel hungry all the time. That's normal. A growing body needs fuel. Just make sure you eat healthy foods and snacks.