Scars.

Scars are usually classified into atrophic scars, hypertrophic scars, or keloids. A number of lasers, both with known and unknown mechanisms of action, have been investigated for improving the appearance of such scars, with variable outcomes. Currently, multiple lasers are being utilized for the treatment of scars. The 585 nm pulsed dye laser is the gold standard of laser therapy for keloid and hypertrophic scars. The ablative lasers such as the CO(2) and Er:YAG lasers are best suited for atrophic scars. Non-ablative approaches have also become popular and are being widely used to achieve reduced downtimes yet still provide excellent outcomes. This chapter discusses these lasers and their role in scar improvement.