The time during your teens when you become sexually mature is called puberty. It is a physical change that usually happens between ages 10 and 14 for girls and ages 12 and 16 for boys.
Some changes occur in both boys and girls, including
In addition, girls develop breasts and begin their periods. Boys become more muscular, their voices deepen, and their penises and testicles become larger. You might also notice changes in the way you think and feel.
National Institute of Child Health and Human Development
Also available in Spanish
Basics | Learn More | Multimedia & Cool Tools |
---|---|---|
Research | Reference Shelf | For You |
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
Also available in Spanish
References and abstracts from MEDLINE/PubMed (National Library of Medicine)
Also available in Spanish
Also available in Spanish
Also available in Spanish
Home | Health Topics | Drugs & Supplements | Encyclopedia | Dictionary | News | Directories | Other Resources | |
Disclaimers | Copyright | Privacy | Accessibility | Quality Guidelines U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894 National Institutes of Health | Department of Health & Human Services |
Date last updated: 14 January 2009 Topic last reviewed: 05 December 2008 |