# A problem with "Grow from seed function"

**URL:** <https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [March 22, 2021, 7:35pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699 "2021-03-22T19:35:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![YOZ](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yoz/32/10418_2.png) [@YOZ](https://discourse.slicer.org/u/YOZ)\
**Post date:** [March 22, 2021, 7:35pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699/1 "2021-03-22T19:35:01Z")

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Hello!

Can you guys help me with “Grow from seed function”. When I draw my seeds, and press initialize in the grow from seed function it show a square instead of tracking along the artery.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/c/bc75e9c83fd33778f3fc450b880c95e43da711be.jpeg)

Thank you for your hard work!

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [March 22, 2021, 8:09pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699/2 "2021-03-22T20:09:39Z")

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Hi - you need to add a background segment too (basically anything that is “not artery”) and add enough so that only your artery is left.

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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:** [March 24, 2021, 5:28pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699/3 "2021-03-24T17:28:08Z")

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Check out [segmentation tutorials](https://slicer.readthedocs.io/en/latest/user_guide/image_segmentation.html#segment-editor-module-overview) to learn how to segment and the [Grow from seeds effect documentation](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmenteditor.html#grow-from-seeds) get to know more about the Grow from seeds effect specifically.

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**Author:** ![YOZ](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yoz/32/10418_2.png) [@YOZ](https://discourse.slicer.org/u/YOZ)\
**Post date:** [March 24, 2021, 11:16pm UTC](https://discourse.slicer.org/t/a-problem-with-grow-from-seed-function/16699/4 "2021-03-24T23:16:57Z")

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Thanks guys. That helped