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Old 09-03-2011, 10:32 AM   #1
mygirl36ik
 
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Default 何謂包皮

包皮好端端指包在雄性陰莖龜頭上的一層皮,有時也容納女性生殖構造上,包覆陰蒂的陰蒂包皮(clitora l hood)。包皮在胚胎時期伴隨陰莖擴大,有保護龜頭的演變。到了青春期過後,包皮不容易再度所有蓋住龜頭 ,未勃起時包皮稍稍覆蓋住龜頭就是包皮應諾萬分輕易的來日推,勃起可露出整體龜頭。很多人在通過青春期後頭 ,包皮瀟灑上翻,一應龜頭在未勃起時亦整體外露。
包皮保護著嬌嫩的陰莖龜頭皮膚,類似於眼皮對於眼睛的保護,第一功用有:
1.保護龜頭,如避免拉鍊夾傷。
2.包著尿布時,包皮可保護龜頭,避免接觸尿液過久。
3.包皮在尿道下裂手術或燙傷補皮時都是很好的材料。
包皮分泌物稱為包皮垢,遞變與女性的陰道分泌物類似,有消炎及阻礙細菌的遞變,但可能不珍惜個人衛生、長工 夫不清洗的話也容易招致生病和傳播症候。
陰莖鬆弛時包皮蓋住龜頭,雖有人種的不同而略有所輪換,但這是整體照常的情況 倉儲物流。除非當陰莖全數勃起時龜頭仍不能露出,則為異常 大陸新娘,這可分為兩種全數相反的境況:如是包皮鬆弛過長而讓尿道口無法露出,稱為包皮過長;而如是包皮開口過小、滋生禁錮在勃起的龜頭上、雖說尿道口露出但仍然關係到性生活,則稱為包莖。包皮過長與包莖是兩種全數相反的狀況,但眾多人常常混淆。
真正的包皮過長是何等不多見的情狀,只有在陰莖勃起時尿道口仍無法裸露、作用射精時才有主導做包皮環切術。 包皮回收術為近幾年割包皮新科技,可屏除包皮過長,亦可保有包皮本身的功用。
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