Menstrual cramps that aren't caused by some underlying condition tend to lessen with age and often disappear once a woman has given birth.

非内在原因而引起的痛经会随着年龄的增大而减轻或者在妊娠之后消失。

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Other factors that contribute to attrition in secondary school, particularly among girls, are school fees, child marriages, a shortage of teachers, inadequate toilet facilities -- a basic need, as girls reach menstrual age -- and the lack of support from parents and the community, Cawasji said.

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The first four questions in the quiz ask about age: your current age, the age of your first menstrual period, and your age at the time your first child was born.

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