Puberty Say: pyoo-bur-tee Everyone goes through puberty, even though it sometimes feels like you're the only one! It's that period of time when your body changes and matures, turning you from a kid into an adult. Although everyone is different, puberty usually starts between age 8 and 13 for girls and age 9 and 15 for boys. Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.