At least 8.
Estrogen the hormone found in woman are the cause of breasts, and you develop breasts during or after puberty, when your hormones are at their highest peek.
It depends on the girl and the female background some girl will start to develop as early as 9 or ten and some girls may be doomed to a flat chest
your breasts will probably stop growing by age 25 but usually before that
It varies from girl to girl as your metabolism is different than someone else's. Right now though, on average, your breasts should begin to develop around this age. It could possibly be within a few months or maybe a year. It is normal for breasts to develop as early as the age of 9 and as late as the age of 14. IF not developed by 14, the girl should see a doctor. I Am In The Same Thing I Am 13 And ALL My Friends Have Big Boobs :( And In The Changing Room I Hide My Chest Because They Are So Small :( I Am Skinny But Am Packing On The Pounds So I Can Finally Get A Bust :)
Girls develop breasts due to the hormones in their body. Usually, breasts are developed at the age of 10-13 They have different hormones to boys, which is why boys dont have breasts.
in the age of puberty the girl should get breasts... around 11 to 13 years of age
Breasts develop at different ages for everyone. Some girls start to develop as young as 8 or 9 years old, and some as late as 16 or 17. However, the average age is around 13 or 14 to develop breasts.
about 14
From the time your breasts begin to develop, it should take two to three years to completely develop, however some girls do develop slower or faster than that.
recently the age has declined it is now 9
you develop them when you start puberty you usually grow them when you are 10 or 11 years of age
There is no age-chart for breast size.