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Acne scars may be atrophic, hypertrophic, or keloidal. Atrophic acne scars constitute the most common presentation of acne scars. Atrophic acne scars can be divided into ice pick, rolling, and boxcar scars based upon morphology. Ice pick scars – Ice pick scars are usually narrow (<2 mm), deep, sharply demarcated tracts. Rolling scars – Rolling scars are usually wider (4 to 5 mm) and more shallow than ice pick scars and produce an undulating appearance in otherwise normal-appearing skin. Boxcar scars – Boxcar scars are wider at the base than ice pick scars and do not taper. These round- to oval-shaped skin dimples have sharp margins and can be either shallow (<0.5 mm) or deep (>0.5 mm). Hypertrophic acne scars and keloids are characterized by collagen gain subsequent to the resolution of an acne lesion, resulting in a firm, raised papule or plaque. Which one do you have?