Scar tissue: Mole is a growth made of pigment cells. A keloid is thickened skin from over production of collagen, at a site of acne surgery or piercing.
Answered 5/27/2019
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Big difference. : Moles are benign lesions that stable over time but may grow slowly. If they suddenly change, a biopsy may be recommended. Keloids grow and be one larger over time and generally associated with trauma or injury or inflammation. The keloid in the photo has been treated whereas the other smaller pigmented lesions appear more similar to moles.
Answered 5/27/2019
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