Different hormones affect different organs or cells.
Puberty is the stage in life when a child's body develops into an adult's body. The changes take place gradually, usually between the ages of 10 and 16.
During puberty, reproductive hormones cause secondary sex characteristics to develop:
A variety of changes happen to boys and girls during puberty.
|Boys only||Boys and girls||Girls only|
|Voice breaks||Pubic hair grows||Voice deepens gradually|
|Hair grows on face and body||Underarm hair grows||Hips get wider|
|Body becomes more muscular||Sexual organs grow and develop||Breasts develop|
|Testes start to produce sperm cells||Ovaries start to release egg cells - menstruation starts|