Teen Development
Educational information. Individual clinical review of this presentation by Dr. Ehsan is not yet documented. It does not replace personal medical evaluation.
Source: MedlinePlus, National Library of Medicine. Read the original source
MedlinePlus data edition September 26, 2026. Imported September 27, 2026. These dates do not indicate a new clinical review of the article.
As a teenager, you go through many physical, mental, emotional, and social changes. The biggest change is puberty, the process of becoming sexually mature. It usually happens between ages 10 and 14 for girls and ages 12 and 16 for boys. As your body changes, you may have questions about sexual health.
During this time, you start to develop your own unique personality and opinions. Some changes that you might notice include:
- Increased independence from your parents
- More concerns about body image and clothes
- More influence from peers
- Greater ability to sense right and wrong
All of these changes can sometimes seem overwhelming. Some sadness or moodiness can be normal. But feeling very sad, hopeless, or worthless could be warning signs of a mental health problem. If you need help, talk to your parents, school counselor, or health care provider.
Centers for Disease Control and Prevention
Questions for your care team
General prompts to help prepare for your appointment.
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- When is follow-up, and how will we know whether the plan is working?
For a life-threatening emergency, call 911 in the U.S. or your local emergency number.
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