# Can you change the size of the segmentation?
**URL:** https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859
**Category:** Support
**Tags:** segmentation
**Created:** [August 13, 2024, 2:46pm UTC](https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859 "2024-08-13T14:46:05Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Daniel\_Murcia](https://discourse.slicer.org/u/Daniel_Murcia)
#### Post date: [August 13, 2024, 2:46pm UTC](https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859/1 "2024-08-13T14:46:05Z")
Hello community, a question, I made a segmentation of some structures in millimeters (mm) but I realized that my image had a scale in microns (um), I then made the change from millimeters to microns in the configurations so that I could get the measurements and other data in Microns, but when I made that adjustment the segmentations that I had made disappeared from my image, I suppose it was due to the change of measurements, what I want to know is if I can do something so that I can see my segmentations again in the image so as not to start over again since there are many segmentations that I perform.
Greetings and thanks in advance.
---
### Author:  [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [August 14, 2024, 4:10am UTC](https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859/2 "2024-08-14T04:10:09Z")
Bring back the units to defaults (mm), and follow the instructions in this thread.
> [@Adapt voxel spacing of segments after changing voxel dimension of master volume](https://discourse.slicer.org/t/adapt-voxel-spacing-of-segments-after-changing-voxel-dimension-of-master-volume/28140):
>
> Operating system: Win10 Slicer version: 5.2.1 r31317 / 77da381 Hi, I am encountering the following problem: segments were obtained by using the segment editor the voxel spacing of the master volume was: 1 x 1 x 1 mm³ (the default value) now I would need to change the voxel spacing of the master volume and also the voxel spacing of the already obtained segments Unfortunately I couldn´t find a smooth solution for this task; once the voxel dimensions of the master volume are changed, the cha…
You should of course correct the spacing in the master volume same way as well.