Normal menstrual cycle duration in an adolescent is

Parameters for Normal Menstrual Cycles in AdolescentsParameterNormalMenstrual cycle frequency21 - 45 daysCycle variation from cycle to cycleLess than adultsDuration of flow4 - 8 daysVolume of flow4 - 80mlParameters for Normal Menstrual Cycles in Reproductive age womenParameterNormalMenstrual cycle frequency24 - 38 daysCycle variation from cycle to cycle2 - 20 daysDuration of flow4 - 8 daysVolume of flow4 - 80ml