Uterine ptosis

Japanese: uterine ptosis（英語表記）uterineptosis

…The former is called incomplete uterine prolapse, and the latter is called complete uterine prolapse. Even if the uterus does not descend outside the vagina, if the external cervical os descends below the line connecting the two ischial spines, it is called uterine ptosis. It is considered a type of hernia, and occurs when the pelvic floor muscles, fascia, and ligaments that support the uterus, especially the levator ani muscle, become weak against resistance due to childbirth, heavy work, constitution, advanced age, etc., and the tension of the pelvic floor relaxes. …

*Some of the terminology that mentions "uterine ptosis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…前者を不全子宮脱，後者を全子宮脱という。また腟外に下降しなくても，外子宮口が両坐骨棘（きよく）を結ぶ線より下降した場合を子宮下垂uterine ptosisという。一種のヘルニアと考えられ，子宮の支持装置である骨盤底諸筋，筋膜，靱帯（じんたい）類，なかでも肛門挙筋が，分娩，重作業，体質，高年齢などによって抵抗に対して薄弱となり，骨盤底の緊張が弛緩するために起こる。…

※「uterine ptosis」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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