How Long Does Female Menstruation Last?

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Definition

Absent menstruation means no menstrual flow, or period. Absent menstruation may be:

  • Primary -- no menstruation by age 16
  • Secondary -- menstruation begins at the appropriate age, but later stops for more than 3 cycles or 6 months

Absent menstruation is called amenorrhea.


Alternative Names

Missed periods; Lack of menses; Periods - missed; Amenorrhea


Considerations

Many perfectly healthy females begin to menstruate later than most (the average age is about 13).

Pregnancy is often the first...

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