Important note

It's normal to have questions about how bodies change during puberty. At age 10, many boys are just beginning to notice changes, but everyone develops at their own pace. There is a wide range of what is typical, and size is not the most important part of health or growing up.

Key points about body changes

• Individual variation: The penis and testicles grow at different rates, and some boys may not notice changes until a bit later. Size varies a lot from person to person.
• What to expect: Common early signs include changes in height, body hair, voice changes, and sometimes erections. These changes happen gradually over years, not all at once.
• Healthy development: Focus on overall health: good sleep, balanced nutrition, regular activity, and managing stress.
• Privacy and comfort: Bodies are private, and it’s okay to ask trusted adults (parents, guardians, school nurse, doctor) any questions you have.

If you’re feeling worried or curious

If you have specific questions about puberty or body changes, consider talking with a parent, guardian, or a healthcare professional who can explain things in an age-appropriate way. It’s okay to ask questions and to learn at your own pace.