# fill holes in segment

**URL:** <https://discourse.slicer.org/t/fill-holes-in-segment/27427>\
**Category:** Support\
**Created:** [January 24, 2023, 1:44am UTC](https://discourse.slicer.org/t/fill-holes-in-segment/27427 "2023-01-24T01:44:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ManiaFG](https://avatars.discourse-cdn.com/v4/letter/m/b77776/32.png) [@ManiaFG](https://discourse.slicer.org/u/ManiaFG)\
**Post date:** [January 24, 2023, 1:44am UTC](https://discourse.slicer.org/t/fill-holes-in-segment/27427/1 "2023-01-24T01:44:51Z")

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Hello! Is there any way to fill holes in each slice?  
I’v downloaded some modules, but no result for me.  
Maybe there are few ways to do this? Would like to know all of them if possible : )

 ![Screenshot_2](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/e/feeee4f7d2ef121916cbe8985886dec57452da7e.jpeg)

Operating system:win 10  
Slicer version:5.2.1  
Expected behavior:  
Actual behavior:

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<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [January 24, 2023, 1:39pm UTC](https://discourse.slicer.org/t/fill-holes-in-segment/27427/2 "2023-01-24T13:39:03Z")

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Segmentation is never trivial. I guess you used a relatively high threshold to minimize the noise outside of the bone. You can choose a lower threshold and then use the Islands tool to remove what you don’t need. Or you can use level tracing to fill the hole on a few slices and then join the result with Fill between slices. Also I suggest trying [WrapSolidify](https://github.com/sebastianandress/Slicer-SurfaceWrapSolidify), it works great filling holes.