你对避孕套根本一无所知
https://p3-sign.toutiaoimg.com/pgc-image/803a2f796251425bafd52ee75e3045d6~tplv-tt-large.image?x-expires=1973407547&x-signature=UWskLLC%2FCUQaQaqj2WGxiHWyteQ%3D
相信许多点进来的老爷
第一反应都是
https://p3-sign.toutiaoimg.com/pgc-image/812aa6ba1ed54f5a82d0e89ce0a58176~tplv-tt-large.image?x-expires=1973407547&x-signature=GJ4aR4U8xmJiXQxc05c2q38cELU%3D
科科
你们平时可能都用错了自己还不知道！
https://p3-sign.toutiaoimg.com/pgc-image/ccc5d15bfa5c402db78f408a47c2b85b~tplv-tt-large.image?x-expires=1973407547&x-signature=KU52tfgqONQ%2BB4svNESOIsuJi%2Bg%3D
为了大家的身心健康
我特意研究了这门极其高深的学问
https://p3-sign.toutiaoimg.com/pgc-image/0d179b8e7a8c4179844fa2a1c721c63a~tplv-tt-large.image?x-expires=1973407547&x-signature=RJeblIo41vjKi8j6D%2BLNtckeIO0%3D
https://p3-sign.toutiaoimg.com/pgc-image/92b4542563cc423a97a18c59cf93a73d~tplv-tt-large.image?x-expires=1973407547&x-signature=cRCW5smDcLGHvzu68HVtXuqiJxw%3D
为什么要科普用避孕套的正确姿势？当然是因为它好用且重要！
避孕套的有效率较高，而且相比结扎避孕药来说，优势也很明显。
https://p3-sign.toutiaoimg.com/pgc-image/0c04cfc9c6324f13af00b7ccb828be79~tplv-tt-large.image?x-expires=1973407547&x-signature=Jji%2BqhYStpnvJhfEpbSEusPwNpg%3D
而且...你们也真的很想知道嘛~
https://p3-sign.toutiaoimg.com/pgc-image/769bb0cf17fb48a19613ee3d7bad10de~tplv-tt-large.image?x-expires=1973407547&x-signature=7Vztz4ecOyE6of%2FoHjRFPajtrWs%3D
https://p3-sign.toutiaoimg.com/pgc-image/0a8d54c584be4eaa85b4971aa60ce9c7~tplv-tt-large.image?x-expires=1973407547&x-signature=y3Q2ibmOerMoe0SAW%2Bmf4sSBjEM%3D
最好的情况，当然是找一个懂这些的对象。
https://p3-sign.toutiaoimg.com/pgc-image/96129ba334824c92bcfb076b70f4b96e~tplv-tt-large.image?x-expires=1973407547&x-signature=9C2kTh3jQmlbkrY6k3M2c8GG%2Bew%3D
但如果你没有，下面的操作认真看认真学！
记住：还是那句话：
https://p3-sign.toutiaoimg.com/pgc-image/4af47aac8d8d46ca8b28f2ed0848ac2b~tplv-tt-large.image?x-expires=1973407547&x-signature=8D7CcGzfDvWBBe2kA%2F77UlQ7O9E%3D
https://p3-sign.toutiaoimg.com/pgc-image/ca38b798ed944808b7012097284a9b20~tplv-tt-large.image?x-expires=1973407547&x-signature=nTY9j6SPJl56QWZlXDxQMJ4GB4Y%3D
为啥要用适合自己尺寸的套套呢？因为：
https://p3-sign.toutiaoimg.com/pgc-image/84f8b3a5b8944cf79060d0957623bb34~tplv-tt-large.image?x-expires=1973407547&x-signature=%2F8NsYc0xgqPrbBTglPPbNcNy%2BHU%3D
那该怎么选呢？
避孕套一般有四种尺寸标准：
https://p3-sign.toutiaoimg.com/pgc-image/47f060627a1e49fc8c3f2da38d42dc03~tplv-tt-large.image?x-expires=1973407547&x-signature=tsI6hY4fSNBdlMvqP3j69UlYLiQ%3D
emmm...没有特大号，但有特小号哦
买的时候就对标这个“标称宽度”就好，标称宽度是啥呢？就是你
https://p3-sign.toutiaoimg.com/pgc-image/26f52f1a479f4e31a8317d63ec3931f6~tplv-tt-large.image?x-expires=1973407547&x-signature=vytHLU2QzcuiuflGagtnZ3hYUis%3D
https://p3-sign.toutiaoimg.com/pgc-image/d776842407d8449a885e0853e85bb516~tplv-tt-large.image?x-expires=1973407547&x-signature=JAicp3cYUu8GjdQR%2FAV63fND7ec%3D
周长的一半。
https://p3-sign.toutiaoimg.com/pgc-image/20432e2997dd4b87be0a95903f81a5f5~tplv-tt-large.image?x-expires=1973407547&x-signature=gBgXUfhnoz1RR8ILCY%2BiTwqZ%2Bzo%3D
所以选套套之前先量一下就行了。
https://p3-sign.toutiaoimg.com/pgc-image/fe087859253c422aa8e39768a0abcee8~tplv-tt-large.image?x-expires=1973407547&x-signature=OKoQWTs4DmAMVEmEJqV9T6IUDh4%3D
对于第一次买的老爷，不合适也正常。
只要不断试错，复盘，调整，总能找到适合自己尺寸的避孕套。
https://p3-sign.toutiaoimg.com/pgc-image/a9d429053b2b4d4ca400958170cb1173~tplv-tt-large.image?x-expires=1973407547&x-signature=khs1OADmrRdnTO5cHZHvvicbx2A%3D
常见的避孕套一般有两种材质：
https://p3-sign.toutiaoimg.com/pgc-image/159645aed1384f51a479dcdd98143f59~tplv-tt-large.image?x-expires=1973407547&x-signature=MGXdAawnoi%2B4X6CDs2gtA5MK3C8%3D
还有一些避孕套会用聚异戊二烯这种材质，其实它们正常使用差别不大，但要注意的是，有些人对橡胶是过敏的。
而普通的避孕套款式区别其实主要就在“薄厚”。这个其实很好选：
https://p3-sign.toutiaoimg.com/pgc-image/ba9ec9750b0147e0a96ecc5681819924~tplv-tt-large.image?x-expires=1973407547&x-signature=JYhud41wWw%2BoHZnipyJ4%2BzYCMX4%3D
选到一个合适的避孕套，下面就可以进入实战演练了。
https://p3-sign.toutiaoimg.com/pgc-image/54958eb7776b4499b437e5699d01c09c~tplv-tt-large.image?x-expires=1973407547&x-signature=kqFuhBRBbgNLsYkVWAeaB%2B3f4qA%3D
虽说避孕套的避孕成功率较高，但在实际应用中成功率可能并没有这么高。
为什么呢？当然还是因为:
https://p3-sign.toutiaoimg.com/pgc-image/1b8aa446493f4d1f83a01062a0c46026~tplv-tt-large.image?x-expires=1973407547&x-signature=3D975NRhmUdQSggXkDqqSwjstKs%3D
正确使用避孕套正确流程，主要分5步：
https://p3-sign.toutiaoimg.com/pgc-image/aa2b70d7f2db4ca9ac09f1823647b4ce~tplv-tt-large.image?x-expires=1973407547&x-signature=NcDkeEJqi62r74uQSdnH2zZc6Ys%3D
撕开避孕套，其实是个技术活。
有些人喜欢耍帅，有人图方便用剪刀剪开。
https://p3-sign.toutiaoimg.com/pgc-image/56476deb1d304e368f74771525cbb0c5~tplv-tt-large.image?x-expires=1973407547&x-signature=2%2BVh7mwpG5HBXWoPf1tUzfK2P8E%3D
这都容易弄破避孕套，给小蝌蚪可乘之机。
正确的姿势其实是：
https://p3-sign.toutiaoimg.com/pgc-image/483a963556184c18be1c785f3c71a1ba~tplv-tt-large.image?x-expires=1973407547&x-signature=%2FfH13IAZcyrrwsUDwbXmajsqhnw%3D
https://p3-sign.toutiaoimg.com/pgc-image/a9c9a708c60047b1bb17c444416027d9~tplv-tt-large.image?x-expires=1973407547&x-signature=g69Rdrt6eG0kpB5JDsayh70XUa8%3D
分什么？分清正反面啊！别笑，真的有很多人会戴反！
如果戴反后拿下来重戴，接触过
https://p3-sign.toutiaoimg.com/pgc-image/5f249619e02643069ec0f3ed88368e5a~tplv-tt-large.image?x-expires=1973407547&x-signature=XbGSh642LZZtFRVJT3ayDWRXvjY%3D
https://p3-sign.toutiaoimg.com/pgc-image/0df7acaf4e9f40318951d27aaccd8c82~tplv-tt-large.image?x-expires=1973407547&x-signature=JObRpRBon%2B%2FkAIF3f7Yp6BVWq6Y%3D
的一端可能已经蹭上了小蝌蚪：
https://p3-sign.toutiaoimg.com/pgc-image/855228451caa4179b452e69823795516~tplv-tt-large.image?x-expires=1973407547&x-signature=t69pwxVjz22Y9v40Oct3THJ26RQ%3D
搞不好就是个：
https://p3-sign.toutiaoimg.com/pgc-image/0a6ad61163964ace8c50e182d17a4aec~tplv-tt-large.image?x-expires=1973407547&x-signature=Kk%2Fvmnv2bBHJ7hKd8tM6kLwuOs4%3D
分清正反面其实很简单，拿起后拎起来保持悬空，有个小揪揪掉下来的就是正面了：
https://p3-sign.toutiaoimg.com/pgc-image/848a1f598d094c12bdcff90fb7f826f6~tplv-tt-large.image?x-expires=1973407547&x-signature=nWwD%2B0mlSBOfg%2Bz%2FubLgu8QTunk%3D
https://p3-sign.toutiaoimg.com/pgc-image/61a336a7ce06437dae9deec97d31cba8~tplv-tt-large.image?x-expires=1973407547&x-signature=q%2Bx38I2krGWow2MIYqBspR1KJqY%3D
刚说过，避孕套的顶端有个小揪揪，戴之前一定要用手捏一下它，排出里面的空气。
https://p3-sign.toutiaoimg.com/pgc-image/460ef284cdb145698a6b4d09613f4841~tplv-tt-large.image?x-expires=1973407547&x-signature=ppZgNrlYxEoM2G0qruEpdx6oM0o%3D
如果里面有空气，待会biu出来的小蝌蚪就没地方去了啊，搞不好就会从旁边的缝隙回流，如果一不小心流到外面......
https://p3-sign.toutiaoimg.com/pgc-image/a8a7e27d93d244b9a25d01dcdd8eb163~tplv-tt-large.image?x-expires=1973407547&x-signature=MDpwTnWL6Iwk3u9nmJ%2FWcjBwims%3D
https://p3-sign.toutiaoimg.com/pgc-image/3d03ed8ff0be4a29bf6c2db6cd5b5b58~tplv-tt-large.image?x-expires=1973407547&x-signature=65iirZkHZZbhg60o44SmBjak1C8%3D
戴套套其实跟游戏团战一样，必须得掌握好进场时机，一定得等
https://p3-sign.toutiaoimg.com/pgc-image/83a596bdc2494a13810ccb44fb8b1ea8~tplv-tt-large.image?x-expires=1973407547&x-signature=c%2FqZd26xFjYQJMooj%2FJwqK53x0k%3D
https://p3-sign.toutiaoimg.com/pgc-image/cba66e91705d4b5fb6e5fcfc5acb8cdc~tplv-tt-large.image?x-expires=1973407547&x-signature=toFHhZi2ZBgviC%2FukntlLLYGXtM%3D
进入战斗状态才能开始佩戴。
戴得时候还要掌握一个秘诀：“一推到底”。必须将避孕套底部推到
https://p3-sign.toutiaoimg.com/pgc-image/f80e90b41f884243bda6bf6a407c4b6d~tplv-tt-large.image?x-expires=1973407547&x-signature=Jztdwdo6BytLOWwYz16p5t%2B8Rpk%3D
https://p3-sign.toutiaoimg.com/pgc-image/8b5d4e1382cf48758b59aca73b7e4571~tplv-tt-large.image?x-expires=1973407547&x-signature=%2Bmg1Go5q%2BX01fXdpF6F9YBWEnXA%3D
底部才行。
https://p3-sign.toutiaoimg.com/pgc-image/9d312bb5f7ea46a5a80e9ce7965e4162~tplv-tt-large.image?x-expires=1973407547&x-signature=rwa00Syo1vKF%2FpYOd7raUJsS2QA%3D
如果只戴到
https://p3-sign.toutiaoimg.com/pgc-image/ec517bff35a449d2a434212f1dc2d794~tplv-tt-large.image?x-expires=1973407547&x-signature=lDOS196RWlzTqRMbE17sQM28ts4%3D
https://p3-sign.toutiaoimg.com/pgc-image/49f21df95cfa4a5792d778ed34af57c9~tplv-tt-large.image?x-expires=1973407547&x-signature=cAn%2BZq2LtkfmwG2P2Bl4POFm300%3D
中部，不光容易给小蝌蚪可乘之机，而且由于接触部分变大，防止传染病的效果也会降低。
https://p3-sign.toutiaoimg.com/pgc-image/d524244f36504fcf9d32d1407c83c637~tplv-tt-large.image?x-expires=1973407547&x-signature=XNY22irSMURasCEUo5dIhezp6Kk%3D
进场时机要把握，退场的时机也很重要。
一定要在
https://p3-sign.toutiaoimg.com/pgc-image/66777c57885c4c77890db5da3ea78e9c~tplv-tt-large.image?x-expires=1973407547&x-signature=M0Z06y%2F6F266KcoOBfZ8IG%2BFOXQ%3D
https://p6-sign.toutiaoimg.com/pgc-image/fdca42c6350f4e9aad29734c8a93f0dd~tplv-tt-large.image?x-expires=1973407547&x-signature=T%2FNiYPWJoiqQPGNWkYxFYUeK9o8%3D
保持战斗状态时提前退出！
等它进入“虚弱状态”再退出，就很容易脱落，甚至直接掉到“战场”里。
https://p3-sign.toutiaoimg.com/pgc-image/be4ef120ab574f7680285c1605d3cda4~tplv-tt-large.image?x-expires=1973407547&x-signature=0eFc9VjdoRcuULZHW2%2B47cCKcf4%3D
还有一个退场时的小技巧：
https://p3-sign.toutiaoimg.com/pgc-image/a9c4cff66b624ca18401d03280f0ed05~tplv-tt-large.image?x-expires=1973407547&x-signature=T1e4ispCaq8aXXNPn3aTCqqG%2F%2FU%3D
对了，用过的避孕套先别急着扔，留着还有用！可以看看小蝌蚪的状态，判断一下自己的身体健康状况。
以前我讲过，具体你们可以后台回复“精子”查看。
https://p3-sign.toutiaoimg.com/pgc-image/b5e229e862304204bf067ab046f1d627~tplv-tt-large.image?x-expires=1973407547&x-signature=jWCX8uDvxDgAQJry086VsQO2HUY%3D
老爷们，你们是不知道，有些人用避孕套，那全是骚操作！
就比如：
https://p3-sign.toutiaoimg.com/pgc-image/1316995c3c814f688a9e3d91ab59273e~tplv-tt-large.image?x-expires=1973407547&x-signature=3w6R5z2X%2Fq8F%2BrKFwTGeNypY5rA%3D
千万不要重复使用啊亲！重复用很容易破啊！省这两块钱，搞不好要多花两百万出去啊！
https://p3-sign.toutiaoimg.com/pgc-image/a5aed56a783d49669c539264c0a15b25~tplv-tt-large.image?x-expires=1973407547&x-signature=sITKJZX%2BwEk5aM6uxHTx9O9BQDs%3D
还有：
https://p3-sign.toutiaoimg.com/pgc-image/26273db4830b4e18ba207f09950ecb0c~tplv-tt-large.image?x-expires=1973407547&x-signature=Xl8S%2FMzLRFAzcCKK%2FDDSQ%2FPr4Dg%3D
这两个套套会相互摩擦，也更容易破裂。这不是“双保险”，这是“更危险”！
还有的人，战斗中途会“加油”。当然不是喊加油了，而是用一些油性的润滑剂。
https://p3-sign.toutiaoimg.com/pgc-image/55ea13a4a2874bfab152b07d01b26aff~tplv-tt-large.image?x-expires=1973407547&x-signature=pbB2%2BeFy9oNBK0jBhr6BdQne%2BgA%3D
但它们反而会降低避孕套的强度，更容易破掉。
说到油，我又想起开头那位老爷的问题：
https://p3-sign.toutiaoimg.com/pgc-image/07cd208e44b74845bcc3672bd33e59d1~tplv-tt-large.image?x-expires=1973407547&x-signature=V0wFMvIhmayL4NQaM%2FjjSdDT%2FOs%3D
是的，套套里面都是有“油”的。
这位老爷说“有油洗不干净”，那可能是因为他“朋友”用的避孕套里的“油”，是油性的硅油。
这种硅油虽然润滑效果持久，但有一个缺点：不溶于水。所以事后清理战场的时候，是真的很难清洗干净。
https://p3-sign.toutiaoimg.com/pgc-image/3248a0d1d05545eab4d2b066a64fc135~tplv-tt-large.image?x-expires=1973407547&x-signature=j2%2BaAXIt3378KX8U3xiNRevKYMw%3D
可能就算认认真真洗了白白，还是觉得自己有那么一丝：
https://p3-sign.toutiaoimg.com/pgc-image/56cc930b1d8b46718c365dd60aa2b476~tplv-tt-large.image?x-expires=1973407547&x-signature=r5MOHTsiVYuSJPHQ3ukuZJKSdvo%3D
不止这位老爷，应该许多人都不喜欢这种感觉吧？
其实也好办！避孕套常用的润滑剂有两种：
https://p3-sign.toutiaoimg.com/pgc-image/ad2679295faa4081b3f2cf838a67cf23~tplv-tt-large.image?x-expires=1973407547&x-signature=Y2xpf0nLtGoS3cUMmY6ReiNRsLg%3D
用润滑油好洗掉的避孕套就行了~
硅油就属于不好洗掉的“油基润滑剂”。
而现在有种避孕套，会用水基的“玻尿酸润滑剂”
因为它们更溶于水，粘到身体上用清水随便冲冲就能冲干净，一点也不会有油腻感。
https://p3-sign.toutiaoimg.com/pgc-image/baa6bbbc0f4d43e5b99c1efd5d3f551e~tplv-tt-large.image?x-expires=1973407547&x-signature=BSvnPB5L0NT4ZQUI%2BCHyaOtVxdY%3D
而且相比硅油润滑剂，水基润滑剂更加水润，有一定的保湿作用。
还能一定程度上减少频繁摩擦对黏膜的损伤，让“开车”更安全~
https://p3-sign.toutiaoimg.com/pgc-image/52af6094e1da48b58a494bc0a4006655~tplv-tt-large.image?x-expires=1973407547&x-signature=tqjb1EAxymr1BhzveAnApI1tSJM%3D
附录1：（参考文献）
宁丽峰, 原思渊, 郭颖志,等. 天然胶乳橡胶避孕套安全性研究进展. 中国计划生育学杂志, 2013(08):57-60.
Zhou Q , Liu S B , Gan X L , et al. The effects of hyaluronic acid vaginal gel on the vaginal epithelium of ovariectomized rats. Gynecological endocrinology: the official journal of the International Society of Gynecological Endocrinology, 2015.
Pietro, Delia, Giuseppe, et al. Clinical Evaluation of Low-Molecular-Weight Hyaluronic Acid-Based Treatment on Onset of Acute Side Effects in Women Receiving Adjuvant Radiotherapy after Cervical Surgery: A Randomized Clinical Trial. Oncology research and treatment, 42(4):217-223.
\0. Tissue integrity signals communicated by high-molecular weight hyaluronan and the resolution of inflammation. Immunologic Research, 2014, 58(2-3):186-192.
博士一分钟，姿势涨不停
- 本期完 -
https://p3-sign.toutiaoimg.com/pgc-image/89f46df63d5244129573908e81e5854e~tplv-tt-large.image?x-expires=1973407547&x-signature=OHJ15qLiBI0JQ5k%2BPJ0MYU5osjY%3D
我是好奇博士
很高兴认识你们
https://p3-sign.toutiaoimg.com/pgc-image/6ff78c33638945b6a43f2e3be3269ec8~tplv-tt-large.image?x-expires=1973407547&x-signature=ffTZ3%2FoEFREOtNbCNFWDzouK2J0%3D
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