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Amenorrhoea and oligomenorrhoea 

Amenorrhoea and oligomenorrhoea
Amenorrhoea and oligomenorrhoea

Enda McVeigh

, John Guillebaud

, and Roy Homburg

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date: 31 July 2021





Amenorrhoea is the absence of menstruation for at least 6 months. 1° amenorrhoea is defined if a menstrual period has never occurred and 2° amenorrhoea after at least one period.

Oligomenorrhoea is the occurrence of menstruation less than once in 35 days to 6 months or <9 times in 1yr....

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