How do I get rid of this mark on the upper quadrant of my stomach? (Photo)

I am not sure where I got this from, I am pretty sure I have had this mark ever since I was a kid, it makes some sort of like a wave shape. I was wondering if anyone could please tell me what this mark is and if there is anything I can do to treat it. The mark is a little hard to see but I am pointing to it in the photo. All help is appreciated!

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