The document discusses pelvic organ prolapse and its classification using the POP-Q system. The POP-Q system divides prolapse into 5 stages based on the position of various vaginal landmarks relative to the hymen. Stage 0 means no prolapse, while stage 1 is mild with the most distal portion of the prolapse within 1 cm of the hymen. Stages get progressively worse up to stage 4 where the entire lower genital tract is everted outside the vaginal opening. Positive numbers indicate points outside the vagina, while negative numbers are within.

1. Medicine ︱醫學專欄
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2. 最後可以根據POP-Q系統將脫垂的嚴重區分為五種分期
分期 定義
零度 無脫垂，點Aa、Ap、Ba、Bp都是-3，
第一度 脫垂的最遠端位於處女膜以內1cm
第二度 脫垂的最遠端位於處女膜內或外1cm以內
第三度 脫垂的最遠為位處女膜外＞1cm，但小於tvl-2cm
第四度 下生殖道完全翻出陰道口，脫垂的最遠端至少tvl-2cm
D相當於tvl的負值，C比D短2公分
Aa：前陰道壁距離
尿道口3公分處
Ba：Aa點至陰道前穹窿
之前陰道壁最脫出處
C：子宮頸或陰道頂
Aa、Ap、Ba、Bp、C、D有正負號，正號代表臟器脫出陰道口，
負號表示臟器仍在陰道口。數字表示的是長度，以公分計。
在未有脫垂的情況下，點Aa，Ap，Ba，Bp都是-3，
D相當於tvl的負值，C比D短 2 cm。
gh：陰道開口 pb：會陰長度 tvl：陰道長度
Ap：後陰道壁距離
尿道口3公分處
Bp：Aa點至陰道後穹窿
之後陰道壁最脫出處
D：陰道後穹窿
。
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3. Medicine ︱醫學專欄
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