Atrophic acne scars have lost collagen from the healing response and are the most common type of acne scar (accounting for approximately 75% of all acne scars). Boxcar scars are round or ovoid indented scars with sharp borders and vary in size from 1.5–4 mm across.Ice-pick scars are narrow (less than 2 mm across), deep scars that extend into the dermis.
Acne Scarring
Acne scars are caused by inflammation within the dermis and are estimated to affect 95% of people with acne vulgaris.Abnormal healing and dermal inflammation create the scar.Scarring is most likely to take place with severe acne but may occur with any form of acne vulgaris.Acne scars are classified based on whether the abnormal healing response following dermal inflammation leads to excess collagen deposition or loss at the site of the acne lesion.
Atrophic acne scars have lost collagen from the healing response and are the most common type of acne scar (accounting for approximately 75% of all acne scars).
Boxcar scars are round or ovoid indented scars with sharp borders and vary in size from 1.5–4 mm across.Ice-pick scars are narrow (less than 2 mm across), deep scars that extend into the dermis.
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