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Hysteroscopic Management of Congenital External Cervical Os Stenosis Using a “No-Touch” Technique in an Adolescent - ScienceDirect
![internal os | external os | cervix os | endocervix | open | closed | vaginal child birth of Labour - YouTube internal os | external os | cervix os | endocervix | open | closed | vaginal child birth of Labour - YouTube](https://i.ytimg.com/vi/kWov1aI_jag/maxresdefault.jpg)
internal os | external os | cervix os | endocervix | open | closed | vaginal child birth of Labour - YouTube
![Anatomical and pathological basis of visual inspection with acetic acid (VIA) and with Lugol's iodine (VILI) Anatomical and pathological basis of visual inspection with acetic acid (VIA) and with Lugol's iodine (VILI)](https://screening.iarc.fr/viavili/fig1-4.jpg)
Anatomical and pathological basis of visual inspection with acetic acid (VIA) and with Lugol's iodine (VILI)
![Lazarus 3D on Twitter: "Congratulations, most of you answered correctly! Fact: The nulliparous cervix has a smooth, round external os whereas a parous cervix has an uneven, wide os. @IARCWHO @GynSurgery @acog # Lazarus 3D on Twitter: "Congratulations, most of you answered correctly! Fact: The nulliparous cervix has a smooth, round external os whereas a parous cervix has an uneven, wide os. @IARCWHO @GynSurgery @acog #](https://pbs.twimg.com/media/EPaXfoUX4AAnWip.jpg)