So I googled and found:
7. I noticed blood near the vent after a shed! Is this normal?

This type of bleeding is not uncommon. Some snakes are "rough" on themselves during shed. Because the skin inside the vent is rather tender, sometimes tearing can occur during a shed. This is not anything to be concerned about unless the bleeding does not stop within a few hours. If the bleeding does not stop or seems severe, an immediate vet visit is warranted.
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Has anyone experienced this?