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GlossaryOligomenorrhea

menstrual cycles longer than 35 days, fewer than eight yearly

Oligomenorrhea, also known as infrequent menstruation, refers to menstrual cycles that occur at intervals longer than 35 days, resulting in fewer than six to eight periods per year. This condition can be caused by various factors, including hormonal imbalances, polycystic ovary syndrome (PCOS), stress, significant weight loss or gain, and certain medications. It is important to diagnose and address the underlying cause to manage the condition effectively.

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Prevalence of Polycystic Ovaries in Women with Self-Reported Symptoms of Oligomenorrhoea and/or Hirsutism: Northern Finland Birth Cohort 1966 Study

research Prevalence of polycystic ovaries in women with self-reported symptoms of oligomenorrhoea and/or hirsutism: Northern Finland Birth Cohort 1966 Study

77 citations , March 2004 in “Human Reproduction”

Women with irregular periods and/or excessive body hair are more likely to have polycystic ovaries, and this condition is linked to higher health risks.

research Oligomenorrhoea in Exercising Women

11 citations , November 2009 in “Sports Medicine”

Irregular menstrual cycles in exercising women may be linked to energy deficiency or hormonal imbalances, requiring careful diagnosis for proper treatment.