Children's Health |
Menstrual cycle04/07/2009 |
My daughter is 12 and she has not started her period yet.
That is not unusual, as 12 is about the average age that a young girl will start her periods. What that means in a practical sense is that half of the girls will be older when they start their periods.
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Michael Spigarelli, MD, PhD Formerly, Associate Professor of Pediatrics and Internal Medicine College of Medicine University of Cincinnati |