Mysterious scar occurred on my palm, what does it mean?

Mysterious scar occurred on my palm, what does it mean?

It happened mysteriously and spontaneiusly. I don't know how it could happen but I'm back to my home then I felt a bit pain and burning sensation inside my hand just directly my palm. What does it mean? Should I be afraid of tetanus etc?

Mysterious scar occurred on my palm, what does it mean?
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