Mucosal injury in pediatric patients frequently occurs in delicate mucosal tissues such as the oral cavity，nasal passages，and gastrointestinal tract，as these areas are particularly susceptible to physical trauma or chemical irritation.Effective management of these injuries requires an approach that prioritizes patient safety，treatment efficacy，and the distinct physiological and psychological needs of pediatric patients. This expert consensus recommends core strategies for the repair of mucosal injuries，including the early assessment of injury range，severity and infection risk，and the development of personalized treatment plans tailored to the age and compliance of the child.Key interventions include wound cleaning，protective measures，moist wound healing and appropriate nutritional support, in order to promote healing，while focusing on pain management and infection prevention. Meanwhile，long-term follow-up is necessary to prevent the risk of scarring and functional impairment. This expert consensus aims to provide a practical，evidence-based management plan for the clinical diagnosis and treatment，and optimize the repair strategies for mucosal injuries in pediatric patients.

mucosal injury, repair, expert consensus, child, wound management