Some attitudes, behaviors, and physical milestones tend to occur at certain ages. It is perfectly natural for a teen to reach some milestones earlier and others later than the general trend. The following are general guidelines for the stages of normal development.
Physical Development
- Most girls complete the physical changes related to puberty by age 15.
- Boys continue to mature and gain strength, muscle mass, and height. Sexual traits also continue to develop.
Emotional Development
- May stress over school and test scores.
- May have high expectations and low self-image.
- Seeks privacy and time alone.
- Worries that they are not physically or sexually attractive.
- May complain that parents try to keep them from doing things independently.
- Start to want both physical and emotional closeness in relationships.
Social Development
- Seeks friends who share the same beliefs, values, and interests. Friends become more important.
- Explores romantic and sexual behaviors with others.
- May be influenced by peers to take risks with alcohol, tobacco, sex, or other things.
Mental Development
- Is better able to set goals and think in terms of the future.
- Has a better understanding of complex problems and issues.
- Starts to develop moral ideals and to select role models.
If you have any concerns about your teen’s development, check with your healthcare provider.
Last modified: 2010-07-28
Last reviewed: 2011-09-20