Puberty in boys

During puberty you should expect to see many evolutionary events.

Physical changes in puberty are the most noticeable changes, especially in the early years of puberty (12 - 15 years). These changes occur as a result of biological changes.

As the nervous system evolves, the testes begin to secrete male sex hormones and male secondary sex characteristics will develop in boys. In boys, secondary sex characteristics are manifested one or two years later than in girls.