Will a embedded stitch in my leg eventually come out?

I had a skin biopsy done, and I was told to remove my own sutures at home. I thought I got them all, but I think there’s one under the skin that I can’t physically see to get to. I can sort of feel it when I scrape my finger over it. It’s also causing a little bit of irritation. But I was told these were the kind of stitches to dissolve on their own.

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