# Segmenting goes across 3 slices

**URL:** <https://discourse.slicer.org/t/segmenting-goes-across-3-slices/2079>\
**Category:** Support\
**Created:** [February 13, 2018, 3:42pm UTC](https://discourse.slicer.org/t/segmenting-goes-across-3-slices/2079 "2018-02-13T15:42:09Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**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:** [February 13, 2018, 4:01pm UTC](https://discourse.slicer.org/t/segmenting-goes-across-3-slices/2079/2 "2018-02-13T16:01:13Z")

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I can imagine two reasons:

1. The image you segment is non-axis-aligned. After a quick search I found [this thread](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546). Please check if this is the case.
2. The Spere brush option is enabled and it also paints on adjacent slices

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_[View the full topic](https://discourse.slicer.org/t/segmenting-goes-across-3-slices/2079)._