There are several types of acne scars including: Boxcar scars: Broad depressed scars with well-defined edges. Most commonly located on the cheeks and temples. Ice-pick scars: Deep and narrow scars that extend into the lower layer of the skin. Rolling scars: Broad depressed scares with a sloping edge. Atrophic scars: Flat, thin or depressed scars. Hypertrophic or keloid scars: Thick, lumpy, red scars that are found around the jawline, neck, chest and back areas. Most individuals will have a mixture of acne scars, such as boxcar, ice-pick and atrophic scars.