Purpose: The aim of this study is to report our experience of the Yus flaps,and we hope it will be helpful to other surgeons.Methods: In our department between January 1992 and December 2012,8 patients had reverse Yu flaps for the reconstruction of upper lip defects and 56patients had classic Yu flaps for lower lip defects.Patients with defects located laterally to the upper lips,ranging from 1/3 to 1/2,had unilateral reverse Yu flaps,and bilateral procedures were done for defects of less than 2/3 of the lips.However,if the defects were located in the centre of the upper lips,between 1/3 and 1/2,they were treated with bilateral reverse Yu flaps.Patients with defects between 1/3 and 2/3 of lower lips had unilateral Yu flaps,and if the defects were wider than 2/3 of the lower lips,the procedure was bilateral.Results: No flap failed and desirable functional and aesthetic outcomes were recorded in all cases.Conclusion: The Yu technique can be used as a one-stage procedure to close defects up to all the lower lips and 2/3 of the upper lips.