The changes take place differently in the body of boys and girls at puberty.

These change may be listed as below:

• There is sudden increase in the height of both boys and girls. However, both reach their maximum height at the age of 17 to 18 years.
• The voice of boys become hoarse and that of girls become shrill.
• Shoulders become broader and muscles grow more prominently in boys. In girls, the regions below the waist becomes wider.
• Hair start growing in different parts of boys and girls.
• In most of the teenagers, due to increased secretion of sweat and sebaceous gland, get acne and pimples on their face.
• Onset of puberty brings changes in secondary sexual characters in both male and female.
• Boys and girls become capable of reproduction.
• In girls, menstruation starts.
• Different types of hormones start to release in initiating a reproductive function.