# segmentation issues 

**URL:** <https://discourse.slicer.org/t/segmentation-issues/17297>\
**Category:** Development\
**Tags:** segmentation\
**Created:** [April 24, 2021, 1:23pm UTC](https://discourse.slicer.org/t/segmentation-issues/17297 "2021-04-24T13:23:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ensieh](https://avatars.discourse-cdn.com/v4/letter/e/e274bd/32.png) [@ensieh](https://discourse.slicer.org/u/ensieh)\
**Post date:** [April 24, 2021, 1:23pm UTC](https://discourse.slicer.org/t/segmentation-issues/17297/1 "2021-04-24T13:23:21Z")

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Hi, I am going to segment my STL file which I have segmented in axial view and smoothed it, i coronal view. but the lines appear and the smooshing is disappeared.  
As in the attached video. how can I fix it?  
thank you.

[https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/a/3a5002cec4edf27a4ce47cbaaba187360d7a6465.mp4](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/a/3a5002cec4edf27a4ce47cbaaba187360d7a6465.mp4)