Puberty is when your body changes, when you develop from being a boy to a man. Learn what changes to expect so that you feel more prepared.
Know that you will go through a growth spurt.
You haven’t grown this much since you were a baby. Usually boys start their growth spurt about 2 years after puberty starts. When you are done going through puberty, you will be almost as tall as you will be when you are a grown up.
Maybe you are worried about how tall you are or how tall you will get. How tall you get depends a lot on how tall your mom and dad are. If they are tall, you are likely to be tall. If they are short, you will probably be short too.
You will also start building some muscle. Again, you may be worried that other boys seem to be getting bigger faster. But puberty happens for each boy on their own body schedule. You can’t rush it.
Eat well, sleep well, and stay physically active to help you grow well. Some boys want to lift weights to build muscles. You will not be able to build muscle until you are in puberty. Before puberty, lifting weights will tone your muscles, but you will not build muscles yet.
Your body makes hormones to get puberty started. Here are some changes you will start seeing. You will:
You will also get erections more often. An erection is when your penis becomes bigger, hard, and stands out from your body. Erections can happen at any time. This is normal.
Most boys start puberty somewhere between the ages of 9 and 16 years. There’s a wide age range when puberty starts. That’s why some kids in 7th grade still look like young children and others look really grown up.
Know that girls usually start puberty earlier than boys. That’s why so many girls are taller than boys in 7th and 8th grade. Eventually many men end up taller than women when they are adults.
Accept changes in your body. Try to be comfortable with your body changing. If you are stressed about changes, talk to your parents or a health care provider that you trust.
Call your health care provider if you are:
Updated by: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang
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