Abstract: 【Abstract】 Hypertrophic scars are a kind of pathological scars caused by an imbalance between collagen fiber production and degradation during the wound healing process, which are elevated above the skin surface but confined to the wound area, with a relatively hard texture. Current treatments of hypertrophic scars are predominantly non-surgical, including topical applications, intralesional drug injections, compression therapy, photoelectric therapy, and cryotherapy. This review briefly delineates the characteristics and pathogenesis of hypertrophic scars, and summarizes recent advances in photoelectric therapy for hypertrophic scars, particularly laser therapy.

Key words: Cicatrix, Hypertrophic scar, Photoelectric therapy, Fractional laser, Pulsed dye laser, Photochemotherapy