Black spot on my left heel?

Hello, I was looking at my feet the other night because I thought maybe I stood on something but when I cleaned my foot, it was still there. It looks like a bruise of some sort that is underneath the actual skin

Hello, I was looking at my feet the other night because I thought maybe I stood on something but when I cleaned my foot, it was still there. It looks like a bruise of some sort that is underneath the actual skin

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Black spot on my left heel?