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Oligomenorrhea

Meaning

Oligomenorrhea is a clinical term defining infrequent or abnormally long menstrual cycles, specifically characterized by a cycle length exceeding 35 days. This condition is a common manifestation of ovulatory dysfunction, where the hormonal milieu fails to consistently trigger the timely release of an oocyte. It is an important sign of an underlying endocrine imbalance, often associated with subfertility or chronic conditions that disrupt the hypothalamic-pituitary-ovarian axis.