What type of scars is not effectively treated by microdermabrasion?

Microdermabrasion is a cosmetic procedure that exfoliates the skin to improve its appearance. It is particularly effective for superficial scars, such as flat scars and boxcar scars, as these types are more responsive to surface-level treatments. Ice pick scars, on the other hand, represent a different challenge. They are characterized by their deep, narrow indentations that penetrate deeply into the skin.

The mechanism of microdermabrasion doesn't adequately address the depth of these scars, as it primarily targets the outermost layer of skin. Since ice pick scars are deeper and more pronounced, they often require more invasive treatments, such as laser therapy or surgical methods, which can penetrate deeper layers of skin to promote more significant healing and collagen production. Thus, ice pick scars are not effectively treated by microdermabrasion, making the identification of their treatment requirement vital for achieving the desired cosmetic results.