A member asked:

I hurt my back about 5months ago and it caused a huge hematoma pn my lower back and it is now healed but thier are now 2 marble sized round bumps that i can move from my tail bone to right below my neck and i can move tbem over my spine and when i touch t

4 doctors weighed in across 2 answers

Very unusual: Moveable subcutaneous bumps that can be moved over the entire back would be very unusual but possibly related to the injury. There are movable types of lipomas.

Answered 9/28/2016

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Big injury!: Most have been a big injury or you were on blood thinners or both. I guess you could have had a large enough hematoma that liquified and turned into a seroma that could have left a large enough dead space for some calcifications of small parts of the hematoma to now travel through that cavity.Like marbles with some seroma fluid remaining!

Answered 12/3/2018

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