Dermatology insights on scar formation and treatment methods

Scars form as the body produces collagen to repair wounds and protect against infection. The appearance and severity of a scar depend on the depth of the injury, the type of wound, and the body part affected. Injuries that extend into the dermis, such as burns, crush injuries, or jagged lacerations, are more likely to result in noticeable scarring than clean surgical cuts.

Certain areas of the body, including the chest, shoulders, and legs, tend to heal more slowly and are more prone to visible scars compared to the face, which benefits from an excellent blood supply. Additionally, individuals with darker skin tones may be more susceptible to hyperpigmented scars.

For acne-related scarring, treatments must be matched to the specific type of scar. Atrophic scars, which create depressions in the skin due to the loss of collagen and fat, are common. These include ice pick scars—narrow, deep pits that may require specialized procedures like TCA CROSS or punch excision—and boxcar scars. Effective management often requires different modalities depending on the depth and structure of the skin irregularity.