Amenorrhea

Absence of a menstrual period in a woman of reproductive age

Amenorrhea or amenorrhoea is the absence of a menstrual period in a female organism which has reached reproductive age. Physiological states of amenorrhea are most commonly seen during pregnancy and lactation (breastfeeding). In humans, it is where a woman or girl who has reached reproductive age and who is not on birth control does not menstruate.

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