Will sand paper work for self harm scare.?

So i have some self harm scars on my bisept and i was wondering if that if i sanded the scars and made a bigger scar would the cut scars come back? Or would there just be a bigger blob scar. Note: i dont want people telling me “dont do that itll just look worse” a blob scar that i can say i skinned looks better... show more So i have some self harm scars on my bisept and i was wondering if that if i sanded the scars and made a bigger scar would the cut scars come back? Or would there just be a bigger blob scar. Note: i dont want people telling me “dont do that itll just look worse” a blob scar that i can say i skinned looks better then selfharm scars. So i dont want help or need any answers like that, i just need a medical answer on if the cuts would disapear.
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