The Role of Fetal Cells in Healing Injuries

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There have been studies to look at if someone has a C-section and they look at the tissue in the C-section, they've found cells from the baby in the parent's scar tissue. And again, it's possible that they're just sort of randomly there, right? Because as Amy was saying, these studies in humans aren't super firm evidence because we don't know what they would be doing to heal a body.

Fetuses leave cells behind in their parents' bodies, where they braid themselves into tissues, and remain, for years. What are they doing in there?

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