delayed menarche

Japanese: delayed menarche(英語表記)delayedmenarche
delayed menarche

…Some scholars explain that menarche occurs when the calorie storage required for pregnancy and childbirth is completed. Currently, more than 99% of women experience menarche by the age of 15, so women who have not yet experienced menarche by the age of 16 are called delayed menarche, and women who have not yet experienced menarche by the age of 18 are called primary amenorrhea. 60% of the latter cases have chromosomal abnormalities or abnormalities in sex differentiation. …

*Some of the terminology explanations that mention "delayed menarche" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…こうした現象に対して,初潮は妊娠,分娩に必要なカロリーの貯蔵が完了したとき発来する,と説明する学者もいる。 現在では,満15歳までに99%以上に初潮をみるので,満16歳になっても初潮がない場合を晩発月経delayed menarche,さらに18歳までに初潮がない場合を原発性無月経primary amenorrheaという。後者の60%に染色体異常や性分化異常がみられる。…

※「delayed menarche」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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