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The Patient’s Guide is the most respected online publication regarding acne scarring, treatments, and prevention. Written and provided by some of America’s foremost dermatologists and laser surgery experts, our mission is to provide you with unbiased, scientifically accurate information about acne scarring, scar types, underlying causes, as well as potential treatments.
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Types of Acne Scars

There are four types of acne scars which are the most common. These are:

Ice Pick Scars

  • Ice Pick Scars
  • Rolling Scars
  • Boxcar Scars
  • Hypertrophic / Keloid Scars
  • How are Acne Scars different then other scars?
  • Ice pick scars are deep, narrow scars which form pits in the skin. They are among the most common.

    Rolling Scars

    Rolling scars create a wave-like appearance on the skin's surface due to their wide and shallow depth.

    Boxcar Scars

    As one might expect from their name, boxcar scars have angular, well-defined edges usually on the temples or cheeks. Their appearance is similar to chickenpox scars.

    Hypertrophic / Keloid Scars

    Hypertrophic scars are raised scars which stay within the boundary of the original wound and can reduce in size with the passage of time. Keloid scars, on the other hand, are overgrowths of tissue which expand beyond the original wound site. The scar is rubbery and firm and may itch. Often they form to be much larger than the original wound.

    How are Acne Scars different then other scars?

    Acne scars are bound down and depressed. As with other scars, acne scars are the result of a wound in our skin healing, resulting in too much collagen in that particular spot. Unlike other scars, however, acne scars are bound down and depressed within our skin. Since the wound occurs within the dermis from the original inflammation brought on by acne, the scar is often within our skin, rather than on its surface. This makes acne scarring very difficult to improve.


    Modern science has, however, developed some highly effective technologies for treating and removing acne scars. Lasers can be very effective at improving the look and texture of acne scarring. More information can be found at:How can I remove my acne scars?

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