Clinical Applications of Punch-Based Techniques in Dermatologic Surgery

Mingtu Du, Haiyan Qin, Lianbo Zhang Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, People’s Republic of ChinaCorrespondence: Lianbo Zhang, Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province, People’s Republic of China, Tel +86 136 6430 0999, Email [email protected]: Punch-based techniques are widely used minimally invasive surgical procedures in dermatologic surgery. Beyond diagnostic use, punch-based procedures are increasingly applied therapeutically across multiple conditions. This review summarizes the current therapeutic applications of punch-based techniques and discusses the strengths and limitations of existing evidence. Current literature supports the use of follicular unit extraction (FUE) for androgenetic alopecia, with generally predictable and reproducible outcomes. In contrast, applications of punch-based techniques for scar improvement, vitiligo repigmentation, chronic wound repair, pilonidal sinus management, and keloid volume reduction are more heterogeneous, and their efficacy often depends on disease stability, combination treatment strategies, and operator experience. Punch elevation, as an adjunctive technique, may improve outcomes in selected atrophic acne scars. In benign cutaneous and subcutaneous lesions, punch excision offers favorable cosmetic advantages due to its limited incision length. Across different indications, most evidence derives from small observational studies or case series, and long-term controlled data remain limited. Overall, punch-based techniques provide precise and tissue-preserving therapeutic options in dermatologic surgery; however, their clinical value varies substantially depending on the specific indications. Further standardized and prospective studies are needed to clarify their long-term efficacy and optimal positioning within treatment algorithms.Keywords: Minimally invasive dermatologic techniques, skin transplantation, keloid, follicular unit extraction