Should I be concerned?

So I was using an exact knife. And it slipped, and I accidentally stabbed the front of my thumb. Left like a half an inch slit. And I quickly got a band aid and closed it tight. Is it worth concerning? I haven’t opened my bandaid yet to see it but the bleeding stopped immediately after I put it on. Would it close itself?

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1 y
Exacto knife*
Should I be concerned?
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