Abstract: 【Abstract】 Acne scars are caused by inflammatory reactions, infections, improper handling of acne lesions, etc, and occur at a high incidence rate. Their treatment is difficult. Currently, there are many methods to treat acne scars, including medicines, photoelectric technology, surgery, filling, chemical peeling, traditional Chinese medicine, biotherapy, microneedle therapy, etc., and many new methods are constantly emerging. However, there are still many difficulties, such as the lack of high-quality clinical studies, non-uniform treatment methods and unsatisfactory therapeutic effects. It remains a challenge and a research hotspot to choose appropriate methods for comprehensive treatment of different types of acne scars at different stages in clinical practice. From the perspective of evidence-based medicine, this consensus aims to provide a reference for the treatment of acne scars in clinical practice.

Key words: Acne vulgaris, Cicatrix, Therapy, Practice guideline