BACKGROUND Compared to single mother-hood, the twin pregnancy results in important esthetic and functional sequelae of the abdominal wall. The considerable uterine growth involves a musculocutaneous diastasis of both the supra-umbilical and the infra-umbilical area. This study presents the modified abdominoplasty technique with an inverted T scar as the appropriate treatment of supra-umbilical and infra-umbilical musculocutaneous defects. METHODS This series reviews a total of 30 female patients of 35 years on average. There was no cases obesity or smoking reported. Surgical treatment consisted in a skin and fat resection following an inverted T scar design and associated to a muscle plication. In 6 patients it has been necessary to repeat the procedure in 6 months time. RESULTS All 30 patients resolved with an aesthetic and functional improvement. No instances of abdominal diastasis recidivation occurred. There were no complication observed and no impact on the healing process was referred. CONCLUSIONS on of the main differences between single and twin pregnancies is that the second ones are concerned by an abdominal diastasis marked on both a vertical and a transversal direction. The complete surgical treatment sometimes includes a second intervention. Clinical results and luck of complications suggest that the T-type abdominoplasty associated to a muscle re-tightening offers an appropriate surgical treatment of patients concerned.