How old?: Depends on her age and stage of puberty. If you're really 23 years old your daughter should be nowhere near having a period.
Answered 4/1/2013
5.2k views
Other signs: The average girl will have her first menses between 2 and 3 years after her breast buds emerge.If not, she should see a pediatric endocrinologist.
Answered 9/25/2013
4.9k views
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