Scars are classified into 5 types: Superficial scars, hypertrophic scars, atrophic scars, depressed scars, and keloid. These types are primarily characterized by abnormal production of fibroblasts and collagen, as well as the disorderly arrangement of connective tissue. Laser treatment for scars involves the coordinated activation of various signaling pathways and cytokines. However, the exact pathological mechanism for scar formation remains unclear, leading to a lack of radical treatment. Recently, laser treatment has gained popularity as a new minimally invasive approach for scar treatment. The emergence of new theories such as fractional, picosecond laser, and laser-assisted drug delivery has led to continuous advance in laser treatment. Up to now, it has been developed numerous novel treatments, including combined with drug, physical, and other treatments, which have shown superior therapeutic effects. In order to optimize laser treatment in the future, it is crucial to combine new materials with postoperative care. This will help clinicians develop more comprehensive treatment strategies. Therefore, it is important to explore treatment options that have broader applicability.
瘢痕主要包括浅表性瘢痕、增生性瘢痕、萎缩性瘢痕、凹陷性瘢痕和瘢痕疙瘩5种类型，以成纤维细胞和胶原蛋白的异常产生及结缔组织的排列紊乱等为特点。激光治疗瘢痕涉及多种信号转导通路和细胞因子的协调激活，然而瘢痕形成的确切病理机制仍不清楚，导致缺乏根治性的治疗手段。近年来，激光治疗作为一种新的瘢痕微创治疗方法越来越受欢迎。点阵、皮秒激光及激光辅助药物传输等新理论的出现，使得激光治疗不断进步，并衍生出许多新颖的治疗方式，包括激光联合药物、物理治疗等，均显示出良好的治疗效果。另外，新型材料与术后护理的结合对优化激光治疗至关重要，这将有助于临床医生制订更完善的治疗策略。因此，探索适用性更广的治疗方案具有非常重要的意义。.
Keywords: combination therapy; laser therapy; mechanism; scars.