This study is a prospective, multicenter, real-world observational study. It aims to evaluate the effectiveness and safety of a combined therapy-autologous epidermal cell suspension followed by biological dressing (porcine xenograft) coverage-for wound repair after dermabrasion or surgical debridement in patients with second-degree burns. A total of 193 patients receiving the combined therapy will be enrolled from multiple hospitals across China. Their outcomes will be compared with 193 matched patients who received conventional treatment alone (e.g., xenograft alone, autologous skin grafting, or standard dressing changes). The primary outcomes include wound healing rate at 4 weeks and time to complete wound closure. Secondary outcomes include scar assessment, pigmentation, functional recovery, quality of life, and safety. Patients will be followed for up to 6 months.