Objective: To observe the efficacy of the vacuum sealing drainage( VSD) technique for the treatment of chronic ulcerative wounds. Methods: From 2009 to 2011,18 cases of patients with chronic ulcers were randomly divided into two groups. 9 patients were treated with vacuum sealing drainage,while 9 patients were treated with traditional dressing. Results: The average healing time of the VSD group and the traditional group are respectively( 21 ± 2. 3) d and( 43 ± 2. 6) d. There was significant difference betwe...