A member asked:

My son's head hit me right on my spine & was pretty painful.about 20mins later i felt in that spot and there was a small lump that moved, what is it?

A doctor has provided 1 answer
Dr. Johanna Fricke answered

Specializes in Pediatrics - Developmental and Behavioral

Probably a bruise: Blood that has nowhere to go, like under the lining of a bone, stays put & calcifies, leaving a "knot" or "bump".

Answered 12/17/2015

1.8k views

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