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陰道口

陰道口
女性外生殖器,小陰唇已被分開
标识字符
拉丁文ostium vaginae
TA98A09.2.01.015
TA23562
FMAFMA:19984
解剖學術語

陰道口(英語:vaginal orifice)是陰道開口的縫隙,位在二片小陰唇之間,尿道開口的下方,其大小和處女膜的面積有關,處女膜蓋住的面積越大,陰道口則越小。

婦科學

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陰道的伸展度常隨著年齡的不同而有變化,健康成熟的婦女,陰道壁的伸展性不論生產過與否,多會隨年齡增加而增大,且一直到五十歲左右為止。

成熟女性的陰道伸展性,一般在2.5公分至9.3公分之間,一般成熟婦女若能以食指與手指等二指插入陰道,為正常伸展度。有些健康發育的未婚女性,也能毫無痛苦地接受二指的插入。倘若二指插入不易或困難甚至伴有疼痛現象,多為發育不良或性交障礙,其中少數婦女是陰道口較小,但未必是恥骨、尾骶骨坐骨構成的面積較常人窄小。若先天陰道口窄小,在性交時、性交後容易疼痛自然分娩時也比一般婦女來得困難[參⁠ 1]

另有臨床經驗指出,日本一些夫婦以為產後陰道鬆弛、陰道口過大,但大多只需彼此調整体位就可改善[參⁠ 2]

外部連結

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參考

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    參:
  1. ^ 李家雄. 《男女本性》. 書泉. 2000. 
  2. ^ 日向野春總《正常位的研究》。


本條目包含來自屬於公共領域版本的《格雷氏解剖學》之內容,而其中有些資訊可能已經過時。

女性生殖器示意圖
翻開陰唇下的陰道口


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陰道口
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