Laparoscopy is the standard of care approach for nephrectomy.The Clavien-Dindo classification has enabled standardized recording of postoperative complications.We prospectively evaluated complications of laparoscopic nephrectomy in a current cohort of patients and graded them on the modified Clavien-Dindo Scale.In an IRB approved protocol, all patients undergoing laparoscopic nephrectomy or nephroureterectomy between July 2012 and December 2014 were included in this study.Demographic profile, clinical parameters,operative data, in-hospital course and follow-up were recorded prospectively in an electronic database.Inhospital and 30 day complications were analysed using the modified Clavien-Dindo scale.The data is reported descriptively and compared with previously published literature.l l6 patients (age 14-80 years, mean 39.3 years) underwent laparoscopic nephrectomy/nephroureterectomy in the study period (64 male, 52 female).This included 32 radical and 84 simple nephrectomies, 70 were right sided and 46 were left sided.6 procedures were converted to open surgery due to vascular injury (2), bowel injury (1), and adhesions (3).In addition, one patient required appendectomy for injury to the appendix without conversion to open surgery.There were 50 (45.4％) complications in the 110 procedures completed laparoscopically including 39 (35.4％) low grade (Clavien-Dindo grade ≤ 2) and l1 (10％) high grade (Clavien-Dindo grade ＞2) complications.There was no mortality.Laparoscopic nephrectomy is associated with significant post operative complications.Complication rates appear to be high, possibly because of more accurate recording on the Clavien Dindo system which encourages a more rigorous definition of a complication.