This growth spurt signals that a girl's menstrual cycle will begin in six months to one year. The growth of the trunk is delayed by one year in comparison to the arms and legs, so limbs appear awkward. Girls who experience their growth spurt earlier or later than others may need reassurance. Breast development continues for several years. Pubic hair .
Pubic hair begins to grow at about the same time the growth spurt occurs.
Underarm and coarser body hair . This generally appears two years after pubic hair. The beginning of menstruation is called menarche. The first menstrual period usually occurs two years after breast development begins. Many people think this occurs at the beginning of puberty, but it is actually one of the later events.