Objective:Tointrduce clinical experience of applying skin soft tissue expansion.Methods:Since 2001,skin soft tissue expansion has been used to repair scars formde from many diseases in 25 patients.We decided the size,shape of the expander and the way of implantation according to the intraoperative scars and skin flaps were transferred to repair the defect.Results:All cases were follwed up about 6~24 months,and the results were satisfactory.Conclusion:The soft tissue expansion is effective for repairing scars.