well everyone grows at their own rate sometimes it's slow but really it depends on the family.....the time will come about the same time as their mom or dad or siblings...like if it's a guy it will happen same time as their dad or brother..if you're a girl it will happen as the same time as your mom or sister. if you are a male, however, obesity can hinder onset of puberty and may be the same in girls.
hope that answers your question...
Their are no disadvantages or risk in starting puberty early.
Hurry up and wait. There is nothing you can do to accelerate the onset of puberty.
After the onset of puberty, males produce semen.
The onset of puberty is different for everyone. It can start as early as eight years old or as late as 25 ! Everyone is different.
Hormones ! A person's hormones control the onset of puberty.
The onset of puberty is triggered by the release of GnRH from the hypothalamus.
Technically, yes, but only if she is experiencing early onset puberty.
Biological Age
Children that are younger than the onset of Puberty
There are no proven links between diet and puberty onset.
menarche
Menarche