Puberty occurs in children and teenagers some time in age range of 10-18. Every child will go through puberty at some stage, whether that be earlier or later than their friends and classmates.

Girls: Puberty for girls usually occurs between the age's of 8-16. Sometimes girl's can start earlier or later. Many girls start at 10 years old. They start earlier than boy's and finish earlier too. They usually begin with breast development and growth that also brings acne due to the oil increase in the skin following pubic hair and underarm hair witch results in their first period. Normally they are 11-13 when they get their period. When they get their period they will continue to grow in different parts of their body, and can become 6cm's taller overall. They will also mature emotionally and become more mature. They usually develop love interests around 11 years old, although some girls may not develop sexual feelings until they are older. When they finish puberty they are a full woman. This usually takes until they are about 14 or over, depending how early or late they started.

Boys: Boys start puberty later than girls, around 12 years of age. When they start puberty they will have acne, like girls, and be more sweaty. Their genitals will grow longer and pubic hair will develop. Boys will build more interest in girls and may even feel more sexual feelings at the age of 16. They will become tall and their voices will get even more deeper. Facial hair may develop later.