Circumferential abdominoplasty is an ideal procedure for patients who have experienced massive weight loss and who have circumferential tissue laxity of the trunk. This procedure requires the patient to be repositioned during the case. It is performed with the patient prone initially and then in the supine position. This is more efficient than the three-position technique using the left and right lateral decubitus positions followed by the supine position. It can achieve greater symmetry, particularly of the buttocks, because both sides are treated simultaneously. Circumferential abdominoplasty allows for complete correction of buttock ptosis, lateral and anterior thigh laxity, abdominal tissue redundancy, and mons ptosis. It also allows for concurrent strong myofascial plication, which further improves abdominal contour. Circumferential abdominoplasty can be combined with autologous buttock augmentation, vertical abdominal tissue resection, mons reduction, or any number of other ancillary procedures (see Chapter 13 , Ancillary Procedures).