What are the signs of puberty for boys?

Puberty in boys differs from that of girls. Boys experience puberty between the ages of 10 - 15.

In boys, the changes are the following:

1. Boys will notice that their bodies become more muscular.
2. Their penis will grow longer and wider and the testicles will grow larger.
3. Boys will start to have erections (hardening of the penis) and wet dreams. From puberty onwards, boys can get a girl pregnant during unprotected sexual intercourse.