First and foremost, it should be clear that there is no right age for the first period to show up. Although most girls start to menstruate between ages 10 and 15 years, one should keep in mind that every girl's body has its own schedule. A common sign that a girl is going to get her first menstrual period is vaginal discharge fluid, which usually begins 6-12 months before it appears.
What age do girls get their period?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 06/29/2017
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)