Meanings of first menstruation in English

In some very rare cases, also, conception has taken place before the first menstruation.

Photo: 123rf It is the first time data has been gathered in New Zealand on the age of first menstruation.

In America, Bowditch states that the first menstruation of country girls more often occurs in spring than at any other season.

Among the Tiyans of Malabar a girl is thought to be polluted for four days from the beginning of her first menstruation.

Photo: University of Otago "We don't collect this data in New Zealand about age of first menstruation which is pretty unbelievable really."

While the age of first menstruation, or menarche, decreased in the early 20th century, some research has suggested onset has shifted little in recent decades.

That the danger is believed to be especially great at the first menstruation appears from the unusual precautions taken to isolate girls at this crisis.