Purpose: To evaluate and compare the diagnostic findings and usefullness of MRI and MR arthrogram in recurrentanterior dislocation of the shoulder. Materials and Methods: MRI and MR arthrogram of thirty-two cases of thirtypatients with recurrent anterior dislocation of the shoulder were retrospectively analyzed to evaluateglenohumeral ligaments, pattern of labral injury, bony Bankart lesion, capsular stripping, Hill-Sachs lesion, andloose body. Results: Labral abnormalities was detected on MRI in 23 cases(72%) and MR arthrogram in 22 cases(69%)as labral tear, detachment, and deficiency. All cases involve anteroinferior labrum. On MR arthrogram, labralabnormalities was confined to anteroinferior portion in 4 cases(18%), extended into midglenoid level in 13cases(59%) and that into anterosuperior portion in 5 cases(23%). Capsular stripping was noted on MRI in 6cases(19%) and MR arthrogram in 12 cases(38%). Loose body was detected only on MR arthrogram in 5 cases(16%). BonyBankart lesion and Hill-Sachs lesion was detected equally on MRI and MR arthrogram in 2 cases(6%) and 21cases(66%) respectively. We obtained identical findings on both MR arthrogram and operation field in 6 patients.Conclusion: MRI with its excellent soft tissue contrast resolution and multiplanar imaging capafility helps helpsdetection of labral injury in recurrent anterior dislocation of the shoulder. MR arthrogram is slightly invasive,but shows good anatomic details of labral-ligamentous-capsular relationship and thus provides accurate detectionof pattern of labral injury, capsular stripping, and loose body.