Would you take him to the Dr? Or wait and see how it heals on its own?

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My 7 yr old got hurt a little yesterday. He was playing his vr game and set the boundry too big. He hit a picture (no glass) and/or the stone fireplace hearth. I can't decide if this is worth a trip to the dr or not. I can't tell if it's cut. Kind of looks like it. It's not bleeding anymore and didnt bleed for long. He said it doesn't hurt now. I don't think it's broken. Have any of you had an injury like this? I was up all night thinking about this. I dont want to do the wrong thing here.