This is Dr. David
yes, your digestion system will break down and pass out your stool a small piece of bone.
the small piece of bone could have scratched the bottom of your esophagus.
that should heal over time
if you notice black tar like stools, you need to see your doctor to get your esophagus and stomach checked for bleeding.
but I would not stress about a small piece of bone
let me know if you have other questions.
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