# CleanUp segmentations

**URL:** <https://discourse.slicer.org/t/cleanup-segmentations/12919>\
**Category:** Development\
**Created:** [August 9, 2020, 3:58pm UTC](https://discourse.slicer.org/t/cleanup-segmentations/12919 "2020-08-09T15:58:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![loubna](https://avatars.discourse-cdn.com/v4/letter/l/cab0a1/32.png) [@loubna](https://discourse.slicer.org/u/loubna)\
**Post date:** [August 9, 2020, 3:58pm UTC](https://discourse.slicer.org/t/cleanup-segmentations/12919/1 "2020-08-09T15:58:01Z")

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Hi;

I would clean up segmentations in order to keep only the big connected regions and remove small internal regions. how can I do that using filters.

Thank’s in advance

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [August 9, 2020, 4:45pm UTC](https://discourse.slicer.org/t/cleanup-segmentations/12919/2 "2020-08-09T16:45:55Z")

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To fill internal holes robustly, without changing external surface at all, you can use shrink-wrap method inplemented in [SurfaceWrapSolidify](https://github.com/sebastianandress/Slicer-SurfaceWrapSolidify) extension.